by Kastro
Paper/Archive/CVE-2026-126806

CVE-2026-126806

WWBN AVideo — WWBN AVideo 14.3 through 29.7.1 Stored XSS via Video Source Tag

CVSS 9.3
critical.is priorityof 100
28
CVSS 9.3 (CNA)9.3 / 10 × 3027.9Not in CISA KEV+300.0No EPSS score.000 × 200.0No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
AVideo14.3 – 29.7.1–CNA

Scores by source

VulnCheck (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
VulnCheck (CNA)8.7CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

References

advisorygithub.com/WWBN/AVideo/security/advisories/GHSA-2qq6-qfcq-jmr9patchgithub.com/WWBN/AVideo/commit/da1da205608d57b1e695a7fad8288a2f5f9a0e0fwriteupgithub.com/WWBN/AVideo/blob/v29.7.1/objects/functionTags.php#L198-L221writeupgithub.com/WWBN/AVideo/blob/v29.7.1/view/managerVideos_body.php#L1997-L2011writeupvulncheck.com/advisories/wwbn-avideo-14.3-through-29.7.1-stored-xss-via-video-source-tag