CVE-2026-33492

HIGH EPSS 21.3%
Published Mar 23, 20263mo ago · Modified Jun 17, 20262w ago
7.3 CVSS 3.1
High
Find Similar
Published Mar 23, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
7.3
Exploitability
2.1
Impact
5.2
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction Required
Scope Unchanged
Confidentiality High
Integrity High
Availability None

Threat Intelligence

EPSS Exploit Probability
21.3% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-384

Affected Products 1

VendorProductVersionRange
wwbnavideo* ≤26.0

References 2

  • github.com https://github.com/WWBN/AVideo/commit/5647a94d79bf69a972a86653fe02144079948785
    Patch
  • github.com https://github.com/WWBN/AVideo/security/advisories/GHSA-x3pr-vrhq-vq43
    ExploitMitigationVendor Advisory

Remediation

  • github.com https://github.com/WWBN/AVideo/commit/5647a94d79bf69a972a86653fe02144079948785
    Patch