High 8.7Published Sep 11, 2026

CVE-2026-89256AVideo Bookmark Plugin Stored XSS via Chapter Names

Updated under an hour ago (2026-10-19 10:10 UTC)

Does this affect you?

It affects WWBN AVideo. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for WWBN AVideo

Exploited in the last 30 days

AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerability in the Bookmark plugin where chapter names are not encoded before being concatenated into public watch-page HTML. A video owner can inject malicious scripts via the bookmark name parameter, and every visitor of that video executes the payload in the AVideo origin.

CVSS: 8.7 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
Weakness (CWE): CWE-79
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Sep 11, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

WWBN AVideo wwbn:avideo (from the name)	through c3edcc274c389816d434acadac07ee78eaf330c1	CNA record

References

https://github.com/WWBN/AVideo/security/advisories/GHSA-jggq-mm5m-r5wvvendor-advisory
https://www.vulncheck.com/advisories/avideo-bookmark-plugin-stored-xss-via-chapter-namesthird-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.