CVE-2026-86188
Medium · CVSS 6.9Published 2026-09-05
CVSS
6.9
Medium
EPSS
—
exploit probability
Active Exploit
No
not yet listed
What is CVE-2026-86188?
AVideo with YPTSocket plugin enabled contains a cross-site scripting vulnerability allowing unauthenticated attackers to execute arbitrary JavaScript in other users' browsers via the websocket callback mechanism. Attackers can send crafted socket messages with callback names resolving to global functions like avideoConfirmHTML that accept untrusted data and assign it to innerHTML, achieving script execution in the victim's origin without authentication or user interaction.
CVSS Score Explained
CVSS 6.9 is Medium severity. Exploitation usually requires some specific conditions (local access, user interaction, or a particular config). Still worth patching in your next maintenance window.
EPSS Exploitation Probability
No EPSS score yet — model needs more data on this CVE.
References & Patches
- ›https://github.com/WWBN/AVideo/security/advisories/GHSA-xpx7-h2x7-59qq
- ›https://www.vulncheck.com/advisories/avideo-yptsocket-plugin-unauthenticated-cross-site-scripting
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