Administrator session replacement via tokenless GET request
Published Sep 8, 2026 · Updated Sep 10, 2026
Cross-site request forgery in WWBN AVideo allows remote attackers to replace an administrator's session via a cross-origin GET request. The CustomizeUser swapUser.json.php endpoint passes users_id from the request to User::swapUser() without enforcing POST or validating a CSRF token. The attack requires an authenticated administrator to load attacker-controlled content; it switches that session to a non-admin account until canceled and exposes the session ID in the response.
Summary
What happened
Cross-site request forgery in WWBN AVideo allows remote attackers to replace an administrator's session via a cross-origin GET request. The CustomizeUser swapUser.json.php endpoint passes users_id from the request to User::swapUser() without enforcing POST or validating a CSRF token. The attack requires an authenticated administrator to load attacker-controlled content; it switches that session to a non-admin account until canceled and exposes the session ID in the response.
The record
- CVE
- CVE-2026-86719
- Published
- Sep 8, 2026
- Updated
- Sep 10, 2026
- Vendor
- WWBN
- Product
- AVideo
- Classifications
- CWE-352, T1204.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 8, 2026CVE publishedPublication date reported by the CVE source.
- Sep 10, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=c3edcc274c389816d434acadac07ee78eaf330c1
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- Cross-origin GET proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo