Common Weakness Enumeration

CWE-79

Allowed

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Abstraction: Base · Status: Stable

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

71637 vulnerabilities reference this CWE, most recent first.

CVE-2026-108260 (GCVE-0-2026-108260)

Vulnerability from cvelistv5 – Published: 2026-10-09 20:40 – Updated: 2026-10-09 20:40

Title

@tinacms/web-components: `tina-markdown` writes rich-text link URLs into `href` without scheme validation, allowing stored XSS

Summary

Tina is a headless content management system. Prior to 0.2.1, the tina-markdown element in packages/@tinacms/web-components/src/tina-markdown.js assigns a rich-text node.url value directly to an anchor href without validating the URL scheme. A content author can store a link using a script-capable scheme, and a visitor who clicks the rendered link executes attacker-controlled script in the site's origin. The script can access same-origin application data and, when the visitor is an editor or administrator, may expose credentials stored by the TinaCMS admin on that origin. This issue is fixed in version 0.2.1.

Severity

7.6 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-83 - Improper Neutralization of Script in Attributes in a Web Page

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7595 records in the last 180 days details

References

4 references

URL	Tags
https://github.com/tinacms/tinacms/security/advis…	x_refsource_CONFIRM
https://github.com/tinacms/tinacms/pull/7523	x_refsource_MISC
https://github.com/tinacms/tinacms/commit/5295e07…	x_refsource_MISC
https://github.com/tinacms/tinacms/releases/tag/@…	x_refsource_MISC

Impacted products

2 products

Vendor	Product	Version
tinacms	tinacms	Affected: < 3.14.0
@tinacms	web-components	Affected: < 0.2.1

Show details on NVD website

JSON

To clipboard

{
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          "product": "tinacms",
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CVE-2026-108159 (GCVE-0-2026-108159)

Vulnerability from cvelistv5 – Published: 2026-10-09 16:04 – Updated: 2026-10-09 16:04

Title

AstronRPA through 1.1.6 RCE via Smart-Component Chat XSS and IPC Bridge

Summary

AstronRPA through 1.1.6 contains a cross-site scripting vulnerability in the desktop client's smart-component chat that allows remote attackers to execute OS commands by abusing unsanitized LLM output rendered via v-html. Attackers can embed prompt-injection content in a web page so the model emits HTML event handlers invoking the unrestricted open-path IPC handler with shell metacharacters, executing commands as the desktop user.

Severity

7.7 (High)


                        
                          CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 5401 records in the last 180 days details

References

4 references

URL	Tags
https://github.com/iflytek/astron-rpa/issues/892	issue-tracking
https://github.com/iflytek/astron-rpa/blob/8b015b…	technical-description
https://github.com/iflytek/astron-rpa	product
https://www.vulncheck.com/advisories/astronrpa-th…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
iflytek	astron-rpa	Affected: 0 , ≤ 1.1.6 (semver)

Date Public

2026-10-06 00:00

Credits

George Chen

Show details on NVD website

JSON

To clipboard

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CVE-2026-107889 (GCVE-0-2026-107889)

Vulnerability from cvelistv5 – Published: 2026-10-09 04:28 – Updated: 2026-10-09 04:28

Title

Keycloak-services: keycloak-services: stored xss on login page via kcsanitize bypass

Summary

A flaw was found in the login theme rendering component of Keycloak. The issue occurs because the security filter responsible for cleaning user input can be bypassed, allowing a realm administrator to store malicious scripts in display fields. This could result in unauthorized JavaScript execution in the browsers of users visiting the login page, potentially leading to data exposure or session interference.

Severity

5.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

redhat CNA under the redhat root

CNA scorecard B 81/100 over 976 records in the last 180 days details

References

2 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2026-107889	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2548355	issue-trackingx_refsource_REDHAT

Impacted products

2 products

Vendor	Product	Version
Red Hat	Red Hat Build of Keycloak	cpe:/a:redhat:build_keycloak:
Red Hat	Red Hat Single Sign-On 7	cpe:/a:redhat:red_hat_single_sign_on:7

Date Public

2026-10-08 15:38

Credits

Red Hat would like to thank Mohammed LACHHAB for reporting this issue.

Show details on NVD website

JSON

To clipboard

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    "cna": {
      "affected": [
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
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CVE-2026-107845 (GCVE-0-2026-107845)

Vulnerability from cvelistv5 – Published: 2026-10-09 19:29 – Updated: 2026-10-09 19:51

Title

Contao: Cross-site scripting in the comments bundle

Summary

Contao is an Open Source CMS. From version 4.0.0 until 5.3.50 and 5.7.12, an unauthenticated visitor can submit a comment whose email or website metadata is rendered without sufficient attribute and URL encoding by listComments() in comments-bundle/contao/dca/tl_comments.php. When a backend user opens the Comments module, attacker-controlled script can execute in the Contao backend origin under that user's session. Unpublished comments remain visible to moderators, so moderation does not prevent exposure. This issue is fixed in versions 5.3.50 and 5.7.12.

Severity

9.3 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-09 19:51 UTC

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-116 - Improper Encoding or Escaping of Output

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7595 records in the last 180 days details

References

4 references

URL	Tags
https://github.com/contao/contao/security/advisor…	x_refsource_CONFIRM
https://github.com/contao/contao/commit/22505d5f7…	x_refsource_MISC
https://github.com/contao/contao/releases/tag/5.3.50	x_refsource_MISC
https://github.com/contao/contao/releases/tag/5.7.12	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
contao	contao	Affected: >= 4.0.0, < 5.3.50 Affected: >= 5.4.0-RC1, < 5.7.12

Show details on NVD website

JSON

To clipboard

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          "name": "https://github.com/contao/contao/releases/tag/5.3.50",
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          "tags": [
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        "advisory": "GHSA-628f-v4f6-p37r",
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      "title": "Contao: Cross-site scripting in the comments bundle"
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CVE-2026-107801 (GCVE-0-2026-107801)

Vulnerability from cvelistv5 – Published: 2026-10-08 21:51 – Updated: 2026-10-08 21:51

Title

Jivejdon through 5.0 Stored XSS via Attachment Upload Content-Type

Summary

Jivejdon through 5.0 contains a stored cross-site scripting vulnerability that allows authenticated attackers to execute JavaScript by uploading attachments with an attacker-supplied Content-Type. Attackers can upload a file declared as text/html, which UploadShowAction serves inline, and share its link to run JavaScript on the application's origin for viewing users.

Severity

5.1 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

5.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 5401 records in the last 180 days details

References

5 references

URL	Tags
https://github.com/banq/jivejdon/issues/28	issue-tracking
https://github.com/banq/jivejdon	product
https://github.com/banq/jivejdon/blob/ee67a65e652…	technical-description
https://github.com/banq/jivejdon/blob/ee67a65e652…	technical-description
https://www.vulncheck.com/advisories/jivejdon-thr…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
banq	jivejdon	Affected: 0 , ≤ 5.0 (custom)

Date Public

2026-10-08 00:00

Credits

Ikram-4

Show details on NVD website

JSON

To clipboard

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CVE-2026-107800 (GCVE-0-2026-107800)

Vulnerability from cvelistv5 – Published: 2026-10-08 21:51 – Updated: 2026-10-09 14:38

Title

Jivejdon through 5.0 Stored XSS via Private Short Messages

Summary

Jivejdon through 5.0 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject script into private short messages because receiveshortmessage.jsp renders unfiltered message bodies. Attackers can send a short message containing script, which ToolsUtil.convertURL() passes through unchanged, to execute code in the recipient's browser when opened.

Severity

5.1 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

5.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-09 14:38 UTC

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 5401 records in the last 180 days details

References

5 references

URL	Tags
https://github.com/banq/jivejdon/issues/28	issue-tracking
https://github.com/banq/jivejdon	product
https://github.com/banq/jivejdon/blob/ee67a65e652…	technical-description
https://github.com/banq/jivejdon/blob/ee67a65e652…	technical-description
https://www.vulncheck.com/advisories/jivejdon-thr…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
banq	jivejdon	Affected: 0 , ≤ 5.0 (custom)

Date Public

2026-10-08 00:00

Credits

Ikram-4

Show details on NVD website

JSON

To clipboard

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  "containers": {
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        "metrics": [
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            "other": {
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                "id": "CVE-2026-107800",
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CVE-2026-107799 (GCVE-0-2026-107799)

Vulnerability from cvelistv5 – Published: 2026-10-08 21:51 – Updated: 2026-10-08 21:51

Title

Jivejdon through 5.0 Stored XSS via messageListBody.jsp Forum Message Rendering

Summary

Jivejdon through 5.0 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject script by posting unsanitized forum message bodies. Message bodies are rendered by messageListBody.jsp with filter="false" and non-escaping default filters, executing script in the browser of every user viewing the thread.

Severity

5.1 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

5.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 5401 records in the last 180 days details

References

5 references

URL	Tags
https://github.com/banq/jivejdon/issues/28	issue-tracking
https://github.com/banq/jivejdon	product
https://github.com/banq/jivejdon/blob/ee67a65e652…	technical-description
https://github.com/banq/jivejdon/blob/ee67a65e652…	technical-description
https://www.vulncheck.com/advisories/jivejdon-thr…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
banq	jivejdon	Affected: 0 , ≤ 5.0 (custom)

Date Public

2026-10-08 00:00

Credits

Ikram-4

Show details on NVD website

JSON

To clipboard

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CVE-2026-107798 (GCVE-0-2026-107798)

Vulnerability from cvelistv5 – Published: 2026-10-08 21:51 – Updated: 2026-10-08 21:51

Title

Jivejdon through commit ee67a65e Stored XSS via Markdown Links in TextStyle Rendering Filter

Summary

jivejdon from commit 595d8d22 through commit ee67a65e contains a stored cross-site scripting vulnerability in the default-enabled TextStyle filter that inserts unvalidated URLs into anchor href attributes. Authenticated attackers can post messages with javascript: links or quote-breaking URLs to execute JavaScript when other users click or hover over rendered links.

Severity

5.1 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

5.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 5401 records in the last 180 days details

References

4 references

URL	Tags
https://github.com/banq/jivejdon/issues/28	issue-tracking
https://github.com/banq/jivejdon	product
https://github.com/banq/jivejdon/blob/ee67a65e652…	technical-description
https://www.vulncheck.com/advisories/jivejdon-thr…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
banq	jivejdon	Affected: 595d8d227fcdedf6f3b73540dd9f5d12dab399fe , ≤ ee67a65e65228644a71c8317d7e34deea50f95ef (git)

Date Public

2026-10-08 00:00

Credits

Ikram-4

Show details on NVD website

JSON

To clipboard

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CVE-2026-107797 (GCVE-0-2026-107797)

Vulnerability from cvelistv5 – Published: 2026-10-08 21:51 – Updated: 2026-10-09 14:36

Title

Jivejdon through 5.0 Reflected XSS via postThread.jsp to and tag Parameters

Summary

Jivejdon through 5.0 contains a reflected cross-site scripting vulnerability in application/message/postThread.jsp that allows attackers to inject script via the to and tag parameters. Attackers can send crafted links to authenticated users, breaking out of unencoded inline JavaScript string literals to execute arbitrary JavaScript in the victim's session.

Severity

5.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

6.1 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-09 14:32 UTC

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 5401 records in the last 180 days details

References

4 references

URL	Tags
https://github.com/banq/jivejdon/issues/28	issue-tracking
https://github.com/banq/jivejdon	product
https://github.com/banq/jivejdon/blob/ee67a65e652…	technical-description
https://www.vulncheck.com/advisories/jivejdon-thr…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
banq	jivejdon	Affected: 0 , ≤ 5.0 (custom)

Date Public

2026-10-08 00:00

Credits

Ikram-4

Show details on NVD website

JSON

To clipboard

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CVE-2026-107796 (GCVE-0-2026-107796)

Vulnerability from cvelistv5 – Published: 2026-10-08 21:51 – Updated: 2026-10-08 21:51

Title

Jivejdon through commit ee67a65e Reflected XSS via taggedThreadList.jsp tagID and count Parameters

Summary

Jivejdon from commit 5489372d through commit ee67a65e contains a reflected cross-site scripting vulnerability in application/query/taggedThreadList.jsp that allows unauthenticated attackers to inject script via unencoded tagID and count parameters. Attackers can craft a link with a script-closing payload in tagID or count, triggered when start exceeds zero, to execute JavaScript in victims' browsers.

Severity

5.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

6.1 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 5401 records in the last 180 days details

References

4 references

URL	Tags
https://github.com/banq/jivejdon/issues/28	issue-tracking
https://github.com/banq/jivejdon	product
https://github.com/banq/jivejdon/blob/ee67a65e652…	technical-description
https://www.vulncheck.com/advisories/jivejdon-thr…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
banq	jivejdon	Affected: 5489372d3c6ddee8c275da414c2c59655d8b7675 , ≤ ee67a65e65228644a71c8317d7e34deea50f95ef (git)

Date Public

2026-10-08 00:00

Credits

Ikram-4

Show details on NVD website

JSON

To clipboard

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Mitigation MIT-4

Architecture and Design

Strategy: Libraries or Frameworks

Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid [REF-1482].
Examples of libraries and frameworks that make it easier to generate properly encoded output include Microsoft's Anti-XSS library, the OWASP ESAPI Encoding module, and Apache Wicket.

Mitigation

Implementation Architecture and Design

Understand the context in which your data will be used and the encoding that will be expected. This is especially important when transmitting data between different components, or when generating outputs that can contain multiple encodings at the same time, such as web pages or multi-part mail messages. Study all expected communication protocols and data representations to determine the required encoding strategies.
For any data that will be output to another web page, especially any data that was received from external inputs, use the appropriate encoding on all non-alphanumeric characters.
Parts of the same output document may require different encodings, which will vary depending on whether the output is in the:
etc. Note that HTML Entity Encoding is only appropriate for the HTML body.
Consult the XSS Prevention Cheat Sheet [REF-724] for more details on the types of encoding and escaping that are needed.
HTML body
Element attributes (such as src="XYZ")
URIs
JavaScript sections
Cascading Style Sheets and style property

Mitigation MIT-6

Architecture and Design Implementation

Strategy: Attack Surface Reduction

Understand all the potential areas where untrusted inputs can enter your software: parameters or arguments, cookies, anything read from the network, environment variables, reverse DNS lookups, query results, request headers, URL components, e-mail, files, filenames, databases, and any external systems that provide data to the application. Remember that such inputs may be obtained indirectly through API calls.

Mitigation MIT-15

Architecture and Design

For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.

Mitigation MIT-27

Architecture and Design

Strategy: Parameterization

If available, use structured mechanisms that automatically enforce the separation between data and code. These mechanisms may be able to provide the relevant quoting, encoding, and validation automatically, instead of relying on the developer to provide this capability at every point where output is generated.

Mitigation MIT-30.1

Implementation

Strategy: Output Encoding

Use and specify an output encoding that can be handled by the downstream component that is reading the output. Common encodings include ISO-8859-1, UTF-7, and UTF-8. When an encoding is not specified, a downstream component may choose a different encoding, either by assuming a default encoding or automatically inferring which encoding is being used, which can be erroneous. When the encodings are inconsistent, the downstream component might treat some character or byte sequences as special, even if they are not special in the original encoding. Attackers might then be able to exploit this discrepancy and conduct injection attacks; they even might be able to bypass protection mechanisms that assume the original encoding is also being used by the downstream component.
The problem of inconsistent output encodings often arises in web pages. If an encoding is not specified in an HTTP header, web browsers often guess about which encoding is being used. This can open up the browser to subtle XSS attacks.

Mitigation MIT-43

Implementation

With Struts, write all data from form beans with the bean's filter attribute set to true.

Mitigation MIT-31

Implementation

Strategy: Attack Surface Reduction

To help mitigate XSS attacks against the user's session cookie, set the session cookie to be HttpOnly. In browsers that support the HttpOnly feature (such as more recent versions of Internet Explorer and Firefox), this attribute can prevent the user's session cookie from being accessible to malicious client-side scripts that use document.cookie. This is not a complete solution, since HttpOnly is not supported by all browsers. More importantly, XmlHttpRequest and other powerful browser technologies provide read access to HTTP headers, including the Set-Cookie header in which the HttpOnly flag is set.

Mitigation MIT-5

Implementation

Strategy: Input Validation

Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."
Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
When dynamically constructing web pages, use stringent allowlists that limit the character set based on the expected value of the parameter in the request. All input should be validated and cleansed, not just parameters that the user is supposed to specify, but all data in the request, including hidden fields, cookies, headers, the URL itself, and so forth. A common mistake that leads to continuing XSS vulnerabilities is to validate only fields that are expected to be redisplayed by the site. It is common to see data from the request that is reflected by the application server or the application that the development team did not anticipate. Also, a field that is not currently reflected may be used by a future developer. Therefore, validating ALL parts of the HTTP request is recommended.
Note that proper output encoding, escaping, and quoting is the most effective solution for preventing XSS, although input validation may provide some defense-in-depth. This is because it effectively limits what will appear in output. Input validation will not always prevent XSS, especially if you are required to support free-form text fields that could contain arbitrary characters. For example, in a chat application, the heart emoticon ("<3") would likely pass the validation step, since it is commonly used. However, it cannot be directly inserted into the web page because it contains the "<" character, which would need to be escaped or otherwise handled. In this case, stripping the "<" might reduce the risk of XSS, but it would produce incorrect behavior because the emoticon would not be recorded. This might seem to be a minor inconvenience, but it would be more important in a mathematical forum that wants to represent inequalities.
Even if you make a mistake in your validation (such as forgetting one out of 100 input fields), appropriate encoding is still likely to protect you from injection-based attacks. As long as it is not done in isolation, input validation is still a useful technique, since it may significantly reduce your attack surface, allow you to detect some attacks, and provide other security benefits that proper encoding does not address.
Ensure that you perform input validation at well-defined interfaces within the application. This will help protect the application even if a component is reused or moved elsewhere.

Mitigation MIT-21

Architecture and Design

Strategy: Enforcement by Conversion

When the set of acceptable objects, such as filenames or URLs, is limited or known, create a mapping from a set of fixed input values (such as numeric IDs) to the actual filenames or URLs, and reject all other inputs.

Mitigation MIT-29

Operation

Strategy: Firewall

Use an application firewall that can detect attacks against this weakness. It can be beneficial in cases in which the code cannot be fixed (because it is controlled by a third party), as an emergency prevention measure while more comprehensive software assurance measures are applied, or to provide defense in depth [REF-1481].

Mitigation MIT-16

Operation Implementation

Strategy: Environment Hardening

When using PHP, configure the application so that it does not use register_globals. During implementation, develop the application so that it does not rely on this feature, but be wary of implementing a register_globals emulation that is subject to weaknesses such as CWE-95, CWE-621, and similar issues.

CAPEC-209: XSS Using MIME Type Mismatch

An adversary creates a file with scripting content but where the specified MIME type of the file is such that scripting is not expected. The adversary tricks the victim into accessing a URL that responds with the script file. Some browsers will detect that the specified MIME type of the file does not match the actual type of its content and will automatically switch to using an interpreter for the real content type. If the browser does not invoke script filters before doing this, the adversary's script may run on the target unsanitized, possibly revealing the victim's cookies or executing arbitrary script in their browser.

CAPEC-588: DOM-Based XSS

This type of attack is a form of Cross-Site Scripting (XSS) where a malicious script is inserted into the client-side HTML being parsed by a web browser. Content served by a vulnerable web application includes script code used to manipulate the Document Object Model (DOM). This script code either does not properly validate input, or does not perform proper output encoding, thus creating an opportunity for an adversary to inject a malicious script launch a XSS attack. A key distinction between other XSS attacks and DOM-based attacks is that in other XSS attacks, the malicious script runs when the vulnerable web page is initially loaded, while a DOM-based attack executes sometime after the page loads. Another distinction of DOM-based attacks is that in some cases, the malicious script is never sent to the vulnerable web server at all. An attack like this is guaranteed to bypass any server-side filtering attempts to protect users.

CAPEC-591: Reflected XSS

This type of attack is a form of Cross-Site Scripting (XSS) where a malicious script is "reflected" off a vulnerable web application and then executed by a victim's browser. The process starts with an adversary delivering a malicious script to a victim and convincing the victim to send the script to the vulnerable web application.

CAPEC-592: Stored XSS

An adversary utilizes a form of Cross-site Scripting (XSS) where a malicious script is persistently "stored" within the data storage of a vulnerable web application as valid input.

CAPEC-63: Cross-Site Scripting (XSS)

An adversary embeds malicious scripts in content that will be served to web browsers. The goal of the attack is for the target software, the client-side browser, to execute the script with the users' privilege level. An attack of this type exploits a programs' vulnerabilities that are brought on by allowing remote hosts to execute code and scripts. Web browsers, for example, have some simple security controls in place, but if a remote attacker is allowed to execute scripts (through injecting them in to user-generated content like bulletin boards) then these controls may be bypassed. Further, these attacks are very difficult for an end user to detect.

CAPEC-85: AJAX Footprinting

This attack utilizes the frequent client-server roundtrips in Ajax conversation to scan a system. While Ajax does not open up new vulnerabilities per se, it does optimize them from an attacker point of view. A common first step for an attacker is to footprint the target environment to understand what attacks will work. Since footprinting relies on enumeration, the conversational pattern of rapid, multiple requests and responses that are typical in Ajax applications enable an attacker to look for many vulnerabilities, well-known ports, network locations and so on. The knowledge gained through Ajax fingerprinting can be used to support other attacks, such as XSS.

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