Vulnerability · Published Sep 8, 2026 · Assigned by VulnCheck

CVE-2026-86719WWBN AVideo CustomizeUser Cross-Site Request Forgery Session Hijacking

Medium 5.4

In plain English

A medium-severity cross-site request forgery in AVideo from WWBN. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 4% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)0.1%top 96.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 (master) contains a cross-site request forgery vulnerability in the CustomizeUser plugin endpoint plugin/CustomizeUser/swapUser.json.php. The endpoint takes users_id from $_REQUEST and invokes User::swapUser() without calling forbidIfNotPost() or forbidIfInvalidToken(), and the global autoCSRFGuard() check only runs for POST requests to *.json.php, so the action is reachable via GET. An attacker who causes an authenticated administrator's browser to issue a cross-origin GET (for example via an <img> tag or link) can replace that administrator's session with a non-admin user account, causing the administrator to lose administrative access until the swap is cancelled; swapping to another administrator account is rejected, so this is not privilege escalation. The JSON response also discloses the session_id. The CustomizeUser plugin is enabled by default, and no patch was available at the time of publication.

Affected products (as reported)

Vendor	Product	Versions
WWBN	AVideo	0 – through c3edcc274c389816d434acadac07ee78eaf330c1

Weakness: CWE-352 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L

References

GitHub Security Advisory (GHSA-xrp7-6w7g-q7fx) vendor-advisory
VulnCheck Advisory: WWBN AVideo CustomizeUser Cross-Site Request Forgery Session Hijacking third-party-advisory