Common Weakness Enumeration
CWE-942
AllowedPermissive Cross-domain Security Policy with Untrusted Domains
Abstraction: Variant · Status: Incomplete
The product uses a web-client protection mechanism such as a Content Security Policy (CSP) or cross-domain policy file, but the policy includes untrusted domains with which the web client is allowed to communicate.
212 vulnerabilities reference this CWE, most recent first.
CVE-2026-84452 (GCVE-0-2026-84452)
Vulnerability from cvelistv5 – Published: 2026-09-02 19:22 – Updated: 2026-09-03 16:01
VLAI
EPSS
VEX
Title
Windows ML CLI: CORS misconfig enables localhost RCE
Summary
Windows ML CLI is a command line tool for building portable, performant, and high-quality AI models for Windows ML. Prior to 0.4.0, the src/winml/modelkit/serve/cli_api.py component exposes WinML CLI commands through a localhost HTTP API without authentication and configures the allow_origins setting as a wildcard in both src/winml/modelkit/serve/cli_api.py and src/winml/modelkit/serve/app.py. A malicious website loaded by a user can send cross-origin requests to /v1/cli/build or /v1/cli/config and set the trust_remote_code parameter to true, which is converted to the --trust-remote-code command-line flag without validation. This reaches AutoConfig.from_pretrained with trust_remote_code=True in src/winml/modelkit/loader/_autoconfig.py and imports Python code from an attacker-controlled model repository, resulting in arbitrary code execution as the server user. This issue is fixed in version 0.4.0.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-03 16:01 UTC
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/microsoft/winml-cli/security/a… | x_refsource_CONFIRM |
| https://github.com/microsoft/winml-cli/pull/1321 | x_refsource_MISC |
| https://github.com/microsoft/winml-cli/commit/f40… | x_refsource_MISC |
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CVE-2026-82291 (GCVE-0-2026-82291)
Vulnerability from cvelistv5 – Published: 2026-08-28 16:19 – Updated: 2026-08-31 18:58
VLAI
EPSS
VEX
Title
HeyForm Reflects Any Origin in CORS Responses While Allowing Credentials
Summary
HeyForm before 3.0.0-rc.8 reflects the request Origin header in CORS responses while allowing credentials, enabling cross-origin requests with authentication. Attackers can execute authenticated GraphQL queries from malicious pages visited by logged-in users to access workspaces, projects, forms, submissions, and respondent data, or modify account settings.
Severity
8.1 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-31 18:58 UTC
CWE
- CWE-942 - Permissive Cross-domain Security Policy with Untrusted Domains
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/heyform/heyform/security/advis… | vendor-advisory |
| https://github.com/heyform/heyform/blob/v3.0.0-rc… | technical-description |
| https://github.com/heyform/heyform/commit/bf9d738… | patch |
| https://github.com/heyform/heyform | product |
| https://www.vulncheck.com/advisories/heyform-refl… | third-party-advisory |
Impacted products
Date Public
2026-06-23 00:00
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CVE-2026-82287 (GCVE-0-2026-82287)
Vulnerability from cvelistv5 – Published: 2026-08-28 16:19 – Updated: 2026-08-31 18:54
VLAI
EPSS
VEX
Title
Rybbit Reflects Any Origin in CORS Responses While Allowing Credentials
Summary
Rybbit before 2.7.0 contains a CORS misconfiguration vulnerability that allows attackers to bypass origin restrictions by reflecting any request origin in Access-Control-Allow-Origin responses while credentials are enabled. Attackers can issue credentialed cross-origin requests from any website to read analytics data, account information, and perform authenticated state-changing operations as the victim user.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-31 16:34 UTC
CWE
- CWE-942 - Permissive Cross-domain Security Policy with Untrusted Domains
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/rybbit-io/rybbit/issues/1038 | issue-tracking |
| https://github.com/rybbit-io/rybbit | product |
| https://github.com/rybbit-io/rybbit/blob/v2.6.0/s… | technical-description |
| https://github.com/rybbit-io/rybbit/commit/6f1039… | patch |
| https://www.vulncheck.com/advisories/rybbit-refle… | third-party-advisory |
Date Public
2026-07-03 00:00
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CVE-2026-74881 (GCVE-0-2026-74881)
Vulnerability from cvelistv5 – Published: 2026-08-17 11:04 – Updated: 2026-08-17 17:36
VLAI
EPSS
VEX
Title
openssl_encrypt before 1.4.0 CORS Misconfiguration via Wildcard Origins
Summary
openssl_encrypt versions before 1.4.0 configure CORS with allow_origins set to wildcard and allow_credentials enabled to true. Attackers can create malicious websites that make authenticated cross-origin requests to the API on behalf of any user who visits them.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-17 17:36 UTC
CWE
- CWE-942 - Permissive Cross-domain Security Policy with Untrusted Domains
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/jahlives/openssl_encrypt/secur… | vendor-advisory |
| https://www.vulncheck.com/advisories/openssl-encr… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| jahlives | openssl_encrypt |
Affected:
0 , < 1.4.0
(semver)
Unaffected: 1.4.0 (semver) |
Date Public
2026-02-10 00:00
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CVE-2026-70604 (GCVE-0-2026-70604)
Vulnerability from cvelistv5 – Published: 2026-08-05 15:59 – Updated: 2026-08-05 18:41
VLAI
EPSS
VEX
Title
Electron: Custom protocol with supportFetchAPI but not corsEnabled allows cross-origin reads
Summary
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.10, 40.9.3, 41.4.0, and 42.0.0, a custom scheme registered with supportFetchAPI: true but without corsEnabled: true was not subject to CORS enforcement. A page loaded from a remote origin could therefore fetch() or XMLHttpRequest that scheme cross-origin and read the full response body, rather than the read being blocked. Apps that serve sensitive data from such a scheme and load remote or untrusted content in a renderer are affected. This issue is fixed in versions 39.8.10, 40.9.3, 41.4.0, and 42.0.0.
Severity
7.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-05 18:13 UTC
CWE
- CWE-942 - Permissive Cross-domain Policy with Untrusted Domains
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/electron/electron/security/adv… | x_refsource_CONFIRM |
Impacted products
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CVE-2026-68517 (GCVE-0-2026-68517)
Vulnerability from cvelistv5 – Published: 2026-08-17 17:03 – Updated: 2026-08-18 14:48
VLAI
EPSS
VEX
Title
Glances: REST API CORS Credentials Guard Uses Exact-Match Instead of Membership Test — Bypassed by Any Multi-Origin Allowlist Containing the Wildcard
Summary
Glances is an open-source system cross-platform monitoring tool. Prior to 4.5.6, the cors_origins guard in glances/outputs/glances_restful_api.py uses exact list equality instead of wildcard membership, allowing a multi-origin list containing the wildcard to retain cors_credentials and expose authenticated REST API data to an untrusted website visited by a previously authenticated user. This issue is fixed in 4.5.6.
Severity
6.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 14:47 UTC
CWE
- CWE-942 - Permissive Cross-domain Policy with Untrusted Domains
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/nicolargo/glances/security/adv… | x_refsource_CONFIRM |
| https://github.com/nicolargo/glances/commit/89085… | x_refsource_MISC |
| https://github.com/nicolargo/glances/releases/tag… | x_refsource_MISC |
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CVE-2026-66005 (GCVE-0-2026-66005)
Vulnerability from cvelistv5 – Published: 2026-07-24 14:57 – Updated: 2026-07-25 10:30 X_Open Source
VLAI
EPSS
VEX
Title
Jan Local API Server CORS Origin Reflection via 0.0.0.0 Binding
Summary
Jan through 0.8.4, fixed in commit 3e1c1e7, contains a CORS misconfiguration vulnerability in its local API server that allows network-adjacent attackers to bypass trusted host restrictions by exploiting the server's replacement of user-configured trusted hosts with a wildcard that reflects arbitrary origins with credentials. Attackers on the local network or using DNS rebinding can reach the unauthenticated OpenAI-compatible API to perform inference, enumerate models, invoke MCP tools, and read cross-origin responses.
Severity
6.3 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-24 15:32 UTC
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/janhq/jan/issues/8453 | technical-descriptionexploitissue-tracking |
| https://github.com/janhq/jan/pull/8506 | issue-trackingpatch |
| https://github.com/janhq/jan/commit/3e1c1e724f696… | patch |
| https://www.vulncheck.com/advisories/jan-local-ap… | third-party-advisory |
Impacted products
Date Public
2026-07-19 00:00
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CVE-2026-65310 (GCVE-0-2026-65310)
Vulnerability from cvelistv5 – Published: 2026-07-31 07:26 – Updated: 2026-07-31 16:34
VLAI
EPSS
VEX
Title
Missing authentication and permissive CORS policy
Summary
ANDRITZ HIPASE-250 (formerly 250 SCALA), in the default configuration
of affected versions, exposes its data and configuration endpoint
without any authentication and permissive CORS on every response. An
unauthenticated attacker with network access can read live process
values and server configuration.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-31 16:34 UTC
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.andritz.com/ |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| ANDRITZ | HIPASE-250 |
Affected:
0 , ≤ 7.20
(custom)
Unaffected: 7.40 |
|
| ANDRITZ | 250 SCALA |
Affected:
0 , ≤ 7.20
(custom)
Unaffected: 7.40 |
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CVE-2026-63407 (GCVE-0-2026-63407)
Vulnerability from cvelistv5 – Published: 2026-08-19 15:51 – Updated: 2026-08-25 02:12
VLAI
EPSS
VEX
Title
Grav API Plugin: CORS 'Access-Control-Allow-Origin: *' on Authenticated API Responses
Summary
Grav API Plugin is a RESTful API for Grav CMS that provides full headless access to your site's content. Prior to 1.0.0-rc.16, the Grav API plugin CorsMiddleware returns Access-Control-Allow-Origin: * and permissive OPTIONS responses for authenticated /api/v1 endpoints. JavaScript from any origin can submit an attacker-obtained JWT through the Authorization or X-API-Token header, read the authenticated response, and perform write operations with the token owner's privileges, enabling data exfiltration and account modification. This issue is fixed in version 1.0.0-rc.16.
Severity
8.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-25 02:11 UTC
CWE
- CWE-942 - Permissive Cross-domain Policy with Untrusted Domains
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/getgrav/grav/security/advisori… | x_refsource_CONFIRM |
| https://github.com/getgrav/grav-plugin-api/commit… | x_refsource_MISC |
| https://github.com/getgrav/grav-plugin-api/releas… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| getgrav | grav-plugin-api |
Affected:
< 1.0.0-rc.16
|
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CVE-2026-62895 (GCVE-0-2026-62895)
Vulnerability from cvelistv5 – Published: 2026-09-08 17:10 – Updated: 2026-09-11 22:09
VLAI
EPSS
VEX
Title
Azure Arc SQL Server Extension Elevation of Privilege Vulnerability
Summary
Permissive cross-domain policy with untrusted domains in Azure Arc allows an unauthorized attacker to elevate privileges over a network.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-10 20:54 UTC
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Azure Arc SQL Server Extension |
Affected:
1.0.0.0 , < 1.1.3518.465
(custom)
cpe:2.3:a:microsoft:azure_arc__sql_server_extension:*:*:*:*:*:*:*:* |
Date Public
2026-09-08 14:00
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Mitigation
Architecture and Design
Operation
Strategy: Attack Surface Reduction
Define a restrictive Content Security Policy [REF-1486] or cross-domain policy file.
Mitigation
Architecture and Design
Operation
Strategy: Attack Surface Reduction
Avoid using wildcards in the CSP / cross-domain policy file. Any domain matching the wildcard expression will be implicitly trusted, and can perform two-way interaction with the target server.
Mitigation
Architecture and Design
Operation
Strategy: Environment Hardening
For Flash, modify crossdomain.xml to use meta-policy options such as 'master-only' or 'none' to reduce the possibility of an attacker planting extraneous cross-domain policy files on a server.
No CAPEC attack patterns related to this CWE.