CVE-2026-33043 HIGH

CVE-2026-33043: AVideo affected by Session Hijacking via Unauthenticated Session ID Disclosure with Permissive CORS

Vendor Wwbn
Product AVideo
Weakness CWE-942
Published March 20, 2026
Last update March 25, 2026
View on NVD All CVEs

CVSS base score

8.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

What the vulnerability does

01Description

WWBN AVideo is an open source video platform. In versions 25.0 and below, /objects/phpsessionid.json.php exposes the current PHP session ID to any unauthenticated request. The allowOrigin() function reflects any Origin header back in Access-Control-Allow-Origin with Access-Control-Allow-Credentials: true, enabling cross-origin session theft and full account takeover. This issue has been fixed in version 26.0.

Key dates

02Disclosure timeline

March 20, 2026 CVE published
March 25, 2026 Record updated