CVE-2026-89243

9.2 criticalEPSS 0.4%

Critical (9.2). EPSS 0.4% chance of exploitation in the next 30 days.

WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerability in UserGroups::setGroup_name() that fails to sanitize group_name input. Administrators with canAdminUserGroups permission can inject malicious HTML and JavaScript that executes in the browser when other administrators access the user manager interface.

Severity

CVSS 4.0

9.2 critical

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N

CVSS 3.1

8.1 high

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

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 32% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2026-09-11
Modified: 2026-09-11
Record from: the NVD, synced 2026-10-19

References

https://github.com/WWBN/AVideo/security/advisories/GHSA-qm3h-2jrx-xmg6
https://www.vulncheck.com/advisories/wwbn-avideo-stored-xss-via-usergroups-setgroup-name
https://github.com/WWBN/AVideo/security/advisories/GHSA-qm3h-2jrx-xmg6

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