CVE-2026-33492
AVideo has Session Fixation via GET PHPSESSID Parameter With Disabled Login Session Regeneration
HIGH 7.3EPSS 0.4%
WWBN AVideo is an open source video platform. In versions up to and including 26.0, AVideo's `_session_start()` function accepts arbitrary session IDs via the `PHPSESSID` GET parameter and sets them as the active PHP session. A session regeneration bypass exists for specific blacklisted endpoints when the request originates from the same domain. Combined with the explicitly disabled session regeneration in `User::login()`, this allows a classic session fixation attack where an attacker can fix a victim's session ID before authentication and then hijack the authenticated session. Commit 5647a94d79bf69a972a86653fe02144079948785 contains a patch.
- Affected
- WWBN · AVideo
- CVSS v3.1 GITHUB
- 7.3 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N - EPSS
- 0.42% chance of exploitation in the next 30 days, 35th percentile
- Published
- 2026-03-23
Proof-of-concept exploits (1)
Security advisories
- WWBN/AVideo/security/advisories/GHSA-x3pr-vrhq-vq43
- WWBN/AVideo/commit/5647a94d79bf69a972a86653fe02144079948785