CVE-2026-41056 Details
Description
WWBN AVideo is an open source video platform. In versions 29.0 and below, the `allowOrigin($allowAll=true)` function in `objects/functions.php` reflects any arbitrary `Origin` header back in `Access-Control-Allow-Origin` along with `Access-Control-Allow-Credentials: true`. This function is called by both `plugin/API/get.json.php` and `plugin/API/set.json.php` — the primary API endpoints that handle user data retrieval, authentication, livestream credentials, and state-changing operations. Combined with the application's `SameSite=None` session cookie policy, any website can make credentialed cross-origin requests and read authenticated API responses, enabling theft of user PII, livestream keys, and performing state changes on behalf of the victim. Commit caf705f38eae0ccfac4c3af1587781355d24495e contains a fix.
A vulnerability exists in WWBN AVideo versions through 29.0, where the 'allowOrigin($allowAll=true)' function in 'objects/functions.php' improperly reflects arbitrary 'Origin' headers in the 'Access-Control-Allow-Origin' response, along with 'Access-Control-Allow-Credentials: true'. This issue affects the main API endpoints in 'plugin/API/get.json.php' and 'plugin/API/set.json.php', which handle user data, authentication, and livestream credentials. The vulnerability allows any website to make credentialed cross-origin requests, read authenticated API responses, and potentially steal user personal information, livestream keys, and perform actions on behalf of the user.
The vulnerability has been fixed in a recent commit. To address this issue, update to the latest version of WWBN AVideo.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 22, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/WWBN/AVideo/security/advisories/GHSA-ccq9-r5cw-5hwq | CISA-ADP | ExploitMitigationVendor Advisory |
| https://github.com/WWBN/AVideo/commit/caf705f38eae0ccfac4c3af1587781355d24495e | [email protected] | Patch |
| https://github.com/WWBN/AVideo/security/advisories/GHSA-ccq9-r5cw-5hwq | [email protected] | ExploitMitigationVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-942 | Permissive Cross-domain Policy with Untrusted Domains | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| wwbn avideo | <= 29.0 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 23, 2026 | Initial Analysis | [email protected] |
| Apr 22, 2026 | CVE Modified | CISA-ADP |
| Apr 21, 2026 | New CVE Received | [email protected] |