CVE-2026-33492
AVideo has Session Fixation via GET PHPSESSID Parameter With Disabled Login Session Regeneration
- State
- Published
- Severity
- 7.3 High
- Published
- Mar 23, 2026
- Updated
- Mar 23, 2026
- Reserved
- Mar 20, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.3 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N | GitHub_M |
Weaknesses
- CWE-384 Session Fixation
Affected Products
| Product | Versions |
|---|---|
AVideoWWBN |
|
References
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