CWE-80
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages.
CVE-2025-66450 (GCVE-0-2025-66450)
Vulnerability from cvelistv5 – Published: 2025-12-11 22:05 – Updated: 2025-12-12 19:30
VLAI
Title
LibreChat JSON Injection in Chat POST Allows Remote Resource Inclusion and PXSS via Image Upload
Summary
LibreChat is a ChatGPT clone with additional features. In versions 0.8.0 and below, when a user posts a question, the iconURL parameter of the POST request can be modified by an attacker. The malicious code is then stored in the chat which can then be shared to other users. When sharing chats with a potentially malicious “tracker”, resources loaded can lead to loss of privacy for users who view the chat link that is sent to them. This issue is fixed in version 0.8.1.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-80 - Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/danny-avila/LibreChat/security… | x_refsource_CONFIRM |
| https://github.com/danny-avila/LibreChat/commit/6… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| danny-avila | LibreChat |
Affected:
< 0.8.1
|
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CVE-2025-66472 (GCVE-0-2025-66472)
Vulnerability from cvelistv5 – Published: 2025-12-10 21:34 – Updated: 2025-12-11 15:40
VLAI
Title
XWiki vulnerable to a reflected XSS via xredirect parameter in DeleteApplication
Summary
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Versions 6.2-milestone-1 through 16.10.9 and 17.0.0-rc-1 through 17.4.1 of both XWiki Platform Flamingo Skin Resources and XWiki Platform Web Templates are vulnerable to a reflected XSS attack through a deletion confirmation message. The attacker-supplied script is executed when the victim clicks the "No" button. This issue is fixed in versions 16.10.10 and 17.4.2 of both XWiki Platform Flamingo Skin Resources and XWiki Platform Web Templates.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/xwiki/xwiki-platform/security/… | x_refsource_CONFIRM |
| https://github.com/xwiki/xwiki-platform/commit/cb… | x_refsource_MISC |
| https://jira.xwiki.org/browse/XWIKI-23244 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| xwiki | xwiki-platform |
Affected:
org.xwiki.platform:xwiki-platform-flamingo-skin-resources >= 6.2-milestone-1, < 16.10.10
Affected: org.xwiki.platform:xwiki-platform-flamingo-skin-resources >= 17.0.0-rc-1, < 17.4.2 Affected: org.xwiki.platform:xwiki-platform-web-templates >= 6.2-milestone-1, < 16.10.10 Affected: org.xwiki.platform:xwiki-platform-web-templates >= 17.0.0-rc-1, < 17.4.2 |
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CVE-2025-66481 (GCVE-0-2025-66481)
Vulnerability from cvelistv5 – Published: 2025-12-09 00:25 – Updated: 2025-12-09 16:03
VLAI
Title
DeepChat's Incomplete XSS Fix Allows RCE through Mermaid Content
Summary
DeepChat is an open-source AI chat platform that supports cloud models and LLMs. Versions 0.5.1 and below are vulnerable to XSS attacks through improperly sanitized Mermaid content. The recent security patch for MermaidArtifact.vue is insufficient and can be bypassed using unquoted HTML attributes combined with HTML entity encoding. Remote Code Execution is possible on the victim's machine via the electron.ipcRenderer interface, bypassing the regex filter intended to strip dangerous attributes. There is no fix at time of publication.
Severity
9.7 (Critical)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/ThinkInAIXYZ/deepchat/security… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ThinkInAIXYZ | deepchat |
Affected:
<= 0.5.1
|
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CVE-2025-66486 (GCVE-0-2025-66486)
Vulnerability from cvelistv5 – Published: 2026-04-01 23:03 – Updated: 2026-04-03 13:56
VLAI
Title
Multiple vulnerabilities have been addressed in IBM Aspera Shares
Summary
IBM Aspera Shares 1.9.9 through 1.11.0 is vulnerable to HTML injection. A remote attacker could inject malicious HTML code, which when viewed, would be executed in the victim's Web browser within the security context of the hosting site.
Severity
4.8 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-80 - Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7267848 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | Aspera Shares |
Affected:
1.9.9 , ≤ 1.11.0
(semver)
cpe:2.3:a:ibm:aspera_shares:1.9.9:*:*:*:*:*:*:* cpe:2.3:a:ibm:aspera_shares:1.11.0:*:*:*:*:*:*:* |
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CVE-2025-66512 (GCVE-0-2025-66512)
Vulnerability from cvelistv5 – Published: 2025-12-05 16:22 – Updated: 2025-12-05 20:05
VLAI
Title
Nextcloud Server vulnerable to XSS in SVG images when opened outside of Nextcloud
Summary
Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server and Server Enterprise prior to 31.0.12 and 32.0.3, a missing sanitization allowed malicious users to circumvent the content security policy when a malicious user manages to trick a user it viewing an uploaded SVG outside of the Nextcloud Servers web page.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-80 - Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/nextcloud/security-advisories/… | x_refsource_CONFIRM |
| https://github.com/nextcloud/viewer/pull/3023 | x_refsource_MISC |
| https://github.com/nextcloud/viewer/commit/5044a2… | x_refsource_MISC |
| https://hackerone.com/reports/3357808 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| nextcloud | security-advisories |
Affected:
>= 32.0.0beta1, < 32.0.3
Affected: < 31.0.12 |
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CVE-2025-69169 (GCVE-0-2025-69169)
Vulnerability from cvelistv5 – Published: 2026-01-08 09:17 – Updated: 2026-04-28 16:14
VLAI
Title
WordPress Easy Media Download plugin <= 1.1.11 - CSS Injection vulnerability
Summary
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in Noor Alam Easy Media Download easy-media-download allows Reflection Injection.This issue affects Easy Media Download: from n/a through <= 1.1.11.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-80 - Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/Wordpress/Plugin/… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Noor Alam | Easy Media Download |
Affected:
0 , ≤ 1.1.11
(custom)
|
Date Public
2026-04-22 14:21
Credits
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CVE-2025-71310 (GCVE-0-2025-71310)
Vulnerability from cvelistv5 – Published: 2026-05-26 01:06 – Updated: 2026-05-26 12:29
VLAI
Summary
The GDPR cookies module for Backdrop CMS (before
1.x-1.3.5) doesn't sufficiently protect visitors from Cross Site Scripting (XSS) if a malicious value has been provided for the optional 'Info content' field for the YouTube service. This is mitigated by the fact that an attacker must have a role with the permission "Create a GDPR Cookies Service" or "Edit any GDPR Cookies Service" and a site must have added a YouTube service as configuration.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-80 - Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| BackdropCMS | GDPR cookies module for Backdrop CMS |
Affected:
0 , < 1.x-1.3.5
(custom)
|
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CVE-2025-8386 (GCVE-0-2025-8386)
Vulnerability from cvelistv5 – Published: 2025-11-14 23:57 – Updated: 2025-11-17 16:56
VLAI
Title
AVEVA Application Server IDE Basic Cross-site Scripting
Summary
The vulnerability, if exploited, could allow an authenticated miscreant
(with privilege of "aaConfigTools") to tamper with App Objects' help
files and persist a cross-site scripting (XSS) injection that when
executed by a victim user, can result in horizontal or vertical
escalation of privileges. The vulnerability can only be exploited during
config-time operations within the IDE component of Application Server.
Run-time components and operations are not affected.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| AVEVA | Application Server |
Affected:
0 , ≤ Versions 2023 R2 SP1 P02
(custom)
|
Credits
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CVE-2025-8621 (GCVE-0-2025-8621)
Vulnerability from cvelistv5 – Published: 2025-08-12 02:24 – Updated: 2026-04-08 17:09
VLAI
Title
Mosaic Generator <= 1.0.5 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'c' Parameter
Summary
The Mosaic Generator plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘c’ parameter in all versions up to, and including, 1.0.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Severity
6.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-80 - Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| odn | Mosaic Generator |
Affected:
0 , ≤ 1.0.5
(semver)
|
Credits
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CVE-2026-1154 (GCVE-0-2026-1154)
Vulnerability from cvelistv5 – Published: 2026-01-19 12:32 – Updated: 2026-02-23 08:45 X_Freeware
VLAI
Title
SourceCodester E-Learning System Lesson index.php cross site scripting
Summary
A flaw has been found in SourceCodester E-Learning System 1.0. This impacts an unknown function of the file /admin/modules/lesson/index.php of the component Lesson Module Handler. Executing a manipulation of the argument Title/Description can lead to basic cross site scripting. The attack can be executed remotely. The exploit has been published and may be used.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.341747 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.341747 | signaturepermissions-required |
| https://vuldb.com/?submit.735855 | third-party-advisory |
| https://gist.github.com/0xCaptainFahim/dada955760… | exploit |
| https://www.sourcecodester.com/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SourceCodester | E-Learning System |
Affected:
1.0
|
Credits
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Mitigation
Phase: Implementation
Description:
- Carefully check each input parameter against a rigorous positive specification (allowlist) defining the specific characters and format allowed. All input should be neutralized, 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. We often encounter 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.
Mitigation ID: MIT-30.1
Phase: Implementation
Strategy: Output Encoding
Description:
- 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 ID: MIT-43
Phase: Implementation
Description:
- With Struts, write all data from form beans with the bean's filter attribute set to true.
Mitigation ID: MIT-31
Phase: Implementation
Strategy: Attack Surface Reduction
Description:
- 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.
CAPEC-18: XSS Targeting Non-Script Elements
This attack is a form of Cross-Site Scripting (XSS) where malicious scripts are embedded in elements that are not expected to host scripts such as image tags (<img>), comments in XML documents (< !-CDATA->), etc. These tags may not be subject to the same input validation, output validation, and other content filtering and checking routines, so this can create an opportunity for an adversary to tunnel through the application's elements and launch a XSS attack through other elements. As with all remote attacks, it is important to differentiate the ability to launch an attack (such as probing an internal network for unpatched servers) and the ability of the remote adversary to collect and interpret the output of said attack.
CAPEC-193: PHP Remote File Inclusion
In this pattern the adversary is able to load and execute arbitrary code remotely available from the application. This is usually accomplished through an insecurely configured PHP runtime environment and an improperly sanitized "include" or "require" call, which the user can then control to point to any web-accessible file. This allows adversaries to hijack the targeted application and force it to execute their own instructions.
CAPEC-32: XSS Through HTTP Query Strings
An adversary embeds malicious script code in the parameters of an HTTP query string and convinces a victim to submit the HTTP request that contains the query string to a vulnerable web application. The web application then procedes to use the values parameters without properly validation them first and generates the HTML code that will be executed by the victim's browser.
CAPEC-86: XSS Through HTTP Headers
An adversary exploits web applications that generate web content, such as links in a HTML page, based on unvalidated or improperly validated data submitted by other actors. XSS in HTTP Headers attacks target the HTTP headers which are hidden from most users and may not be validated by web applications.