CVE-2026-41056: CWE-942: Permissive Cross-domain Policy with Untrusted Domains in WWBN AVideo
WWBN AVideo is an open source video platform. In versions 29.0 and below, the `allowOrigin($allowAll=true)` function in `objects/functions.php` reflects any arbitrary `Origin` header back in `Access-Control-Allow-Origin` along with `Access-Control-Allow-Credentials: true`. This function is called by both `plugin/API/get.json.php` and `plugin/API/set.json.php` — the primary API endpoints that handle user data retrieval, authentication, livestream credentials, and state-changing operations. Combined with the application's `SameSite=None` session cookie policy, any website can make credentialed cross-origin requests and read authenticated API responses, enabling theft of user PII, livestream keys, and performing state changes on behalf of the victim. Commit caf705f38eae0ccfac4c3af1587781355d24495e contains a fix.
AI Analysis
Technical Summary
WWBN AVideo (<= 29.0) has a CWE-942 vulnerability where the allowOrigin($allowAll=true) function reflects any Origin header back in Access-Control-Allow-Origin along with Access-Control-Allow-Credentials: true. This occurs in critical API endpoints (plugin/API/get.json.php and plugin/API/set.json.php) that manage user data retrieval, authentication, and state changes. Combined with the application's SameSite=None cookie policy, this allows credentialed cross-origin requests from any website, risking theft of user PII, livestream credentials, and unauthorized actions. A code commit (caf705f38eae0ccfac4c3af1587781355d24495e) contains a fix, but no official patch or vendor advisory is provided yet.
Potential Impact
An attacker can exploit this vulnerability to perform cross-origin requests with user credentials, potentially accessing sensitive personal information, livestream keys, and executing unauthorized state-changing operations on behalf of authenticated users. This poses a high confidentiality and integrity risk to affected systems and users.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. A fix has been committed in the source repository (commit caf705f38eae0ccfac4c3af1587781355d24495e), so applying this update or later versions is recommended once officially released. Until then, consider restricting cross-origin requests or disabling the vulnerable API endpoints if feasible.
CVE-2026-41056: CWE-942: Permissive Cross-domain Policy with Untrusted Domains in WWBN AVideo
Description
WWBN AVideo is an open source video platform. In versions 29.0 and below, the `allowOrigin($allowAll=true)` function in `objects/functions.php` reflects any arbitrary `Origin` header back in `Access-Control-Allow-Origin` along with `Access-Control-Allow-Credentials: true`. This function is called by both `plugin/API/get.json.php` and `plugin/API/set.json.php` — the primary API endpoints that handle user data retrieval, authentication, livestream credentials, and state-changing operations. Combined with the application's `SameSite=None` session cookie policy, any website can make credentialed cross-origin requests and read authenticated API responses, enabling theft of user PII, livestream keys, and performing state changes on behalf of the victim. Commit caf705f38eae0ccfac4c3af1587781355d24495e contains a fix.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
WWBN AVideo (<= 29.0) has a CWE-942 vulnerability where the allowOrigin($allowAll=true) function reflects any Origin header back in Access-Control-Allow-Origin along with Access-Control-Allow-Credentials: true. This occurs in critical API endpoints (plugin/API/get.json.php and plugin/API/set.json.php) that manage user data retrieval, authentication, and state changes. Combined with the application's SameSite=None cookie policy, this allows credentialed cross-origin requests from any website, risking theft of user PII, livestream credentials, and unauthorized actions. A code commit (caf705f38eae0ccfac4c3af1587781355d24495e) contains a fix, but no official patch or vendor advisory is provided yet.
Potential Impact
An attacker can exploit this vulnerability to perform cross-origin requests with user credentials, potentially accessing sensitive personal information, livestream keys, and executing unauthorized state-changing operations on behalf of authenticated users. This poses a high confidentiality and integrity risk to affected systems and users.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. A fix has been committed in the source repository (commit caf705f38eae0ccfac4c3af1587781355d24495e), so applying this update or later versions is recommended once officially released. Until then, consider restricting cross-origin requests or disabling the vulnerable API endpoints if feasible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-04-16T16:43:03.173Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69e85dc119fe3cd2cd70808f
Added to database: 4/22/2026, 5:33:53 AM
Last enriched: 4/22/2026, 5:34:10 AM
Last updated: 4/23/2026, 1:05:14 AM
Views: 4
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