CVE-2026-89255CWE-79cross-site-scripting

CVE-2026-89255

High · published September 11, 2026

CVSS v3.1
8.7
EPSS
0%
Percentile
29.3
In the wild
Unconfirmed
What it is

AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerability in the LoginControl plugin that fails to HTML-encode PGP public keys echoed into a textarea element. An authenticated attacker can inject malicious JavaScript by submitting a crafted public key, which executes in an administrator's session when viewing the user's profile tab.

The record
Technical detail
CVSS v3.1
8.7 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
CVSS v4.0
9.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
EPSS
0.00367 · 29.3th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-09-11T16:16Z
References (3)
https://github.com/WWBN/AVideo/security/advisories/GHSA-gq4h-vw2w-9rx3 · [email protected]https://www.vulncheck.com/advisories/avideo-logincontrol-stored-xss-via-pgp-public-key · [email protected]https://github.com/WWBN/AVideo/security/advisories/GHSA-gq4h-vw2w-9rx3 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 13 SEP 03:23Z
    EPSS moved — → 0%
    epss
  • 11 SEP 11:15Z
    AVideo LoginControl Stored XSS via PGP Public Key
    cvelistv5