CSRF in Wwbn Avideo
CVE-2026-40926
WWBN AVideo is an open source video platform. In versions 29.0 and prior, three admin-only JSON endpoints — `objects/categoryAddNew.json.php`, `objects/categoryDelete.json.php`, and `objects/pluginRunUpdateScript.json.php` — enforce only a role check (`Category::canCreateCategory()` / `User::isAdmin()`) and perform state-changing actions against the database without calling `isGlobalTokenValid()` or `forbidIfIsUntrustedRequest()`. Peer endpoints in the same directory (`pluginSwitch.json.php`, `pluginRunDatabaseScript.json.php`) do enforce the CSRF token, so the missing checks are an omission rather than a design choice. An attacker who lures a logged-in admin to a malicious page can create, update, or delete categories and force execution of any installed plugin's `updateScript()` method in the admin's session. Commit ee5615153c40628ab3ec6fe04962d1f92e67d3e2 contains a fix.
Vulnerability class: CSRF (Cross-Site Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L.
EPSS exploit prediction
EPSS: 0.002 (11.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 11.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.001
Affected products
- Wwbn Avideo — versions <= 29.0
Weakness classification (CWE)
References
- github.com/WWBN/AVideo/security/advisories/GHSA-ffw8-fwxp-h64w (Exploit, Mitigation, Vendor Advisory)
- github.com/WWBN/AVideo/commit/ee5615153c40628ab3ec6fe04962d1f92e67d3e2 (Patch)
Frequently asked questions
- What is CVE-2026-40926?
- CVE-2026-40926 is a high-severity vulnerability in Wwbn Avideo, classified under Cross-Site Request Forgery (CSRF). CVSS score: 7.1/10. Published 2026-04-21.
- How severe is CVE-2026-40926?
- High severity. CVSS v3 base score is 7.1 out of 10.