CVE-2026-126806: WWBN AVideo 14.3 through 29.7.1 Stored XSS via Video Source Tag

Is it exploited?

Not on CISA's list. CISA has not added it to the Known Exploited Vulnerabilities catalog as of 13 Nov 2026. If CISA adds it, this page shows it as known exploited.

How likely is exploitation in the next 30 days?

0.4%

EPSS score, percentile 30.3 of all scored records. A probability estimated by FIRST, not a report of exploitation.

CISA's SSVC assessment in the CVE record lists exploitation as poc.

How severe?

9.3 Critical

CVSS v4.0 base score, given by the CNA

What should I do?

CISA has set no required action, because the vulnerability is not in KEV.

Advisories and patches (2)

Which versions are affected?

Affected

• 14.3 through 29.7.1

Versions by product

Source: CISA KEV 2026.11.13, as of 13 Nov 2026; FIRST EPSS, as of 13 Nov 2026; CVE List, as of 14 Nov 2026. About the data.

Description

WWBN AVideo 14.3 through 29.7.1 Stored XSS via Video Source Tag

WWBN AVideo 14.3 through 29.7.1 contains a stored cross-site scripting vulnerability that allows uploaders to inject scripts via the videoDownloadedLink value stored unescaped through objects/aVideoEncoder.json.php. Attackers can embed event-handler payloads in the URL host rendered as a Source tag in view/managerVideos_body.php, executing in administrator sessions to install plugin archives containing PHP.

Source: CVE List, as of 14 Nov 2026. About the data.

What to do

Advisories and patches

• github.com (Patch)
• GitHub Security Advisory (GHSA-2qq6-qfcq-jmr9) (Vendor advisory)

This summary is based on the CVE record as of 14 Nov 2026. Check the vendor's advisory before you act: affected versions and fixes can change.

Affected products and versions

Source: CVE List, as of 14 Nov 2026. About the data.

Timeline