Vulnerability Description
WWBN AVideo is an open source video platform. In versions 29.0 and below, the `allowOrigin($allowAll=true)` function in `objects/functions.php` reflects any arbitrary `Origin` header back in `Access-Control-Allow-Origin` along with `Access-Control-Allow-Credentials: true`. This function is called by both `plugin/API/get.json.php` and `plugin/API/set.json.php` — the primary API endpoints that handle user data retrieval, authentication, livestream credentials, and state-changing operations. Combined with the application's `SameSite=None` session cookie policy, any website can make credentialed cross-origin requests and read authenticated API responses, enabling theft of user PII, livestream keys, and performing state changes on behalf of the victim. Commit caf705f38eae0ccfac4c3af1587781355d24495e contains a fix.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Wwbn | Avideo | <= 29.0 |
Related Weaknesses (CWE)
References
- https://github.com/WWBN/AVideo/commit/caf705f38eae0ccfac4c3af1587781355d24495ePatch
- https://github.com/WWBN/AVideo/security/advisories/GHSA-ccq9-r5cw-5hwqExploitMitigationVendor Advisory
- https://github.com/WWBN/AVideo/security/advisories/GHSA-ccq9-r5cw-5hwqExploitMitigationVendor Advisory
FAQ
What is CVE-2026-41056?
CVE-2026-41056 is a vulnerability with a CVSS score of 8.1 (HIGH). WWBN AVideo is an open source video platform. In versions 29.0 and below, the `allowOrigin($allowAll=true)` function in `objects/functions.php` reflects any arbitrary `Origin` header back in `Access-C...
How severe is CVE-2026-41056?
CVE-2026-41056 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-41056?
Check the references section above for vendor advisories and patch information. Affected products include: Wwbn Avideo.