XSS in Wwbn Avideo
CVE-2026-56347
AVideo TopMenu plugin through version 26.0 contains a stored cross-site scripting vulnerability in menu item rendering due to missing output encoding of icon classes, URLs, and text labels. Attackers can inject malicious JavaScript through unescaped menu item fields that execute for all site visitors, potentially stealing session cookies or performing unauthorized actions.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (16.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 17th percentile — 16.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Wwbn Avideo — versions 0
Weakness classification (CWE)
References
- github.com/WWBN/AVideo/security/advisories/GHSA-gmpc-fxg2-vcmq (vendor-advisory)
- www.vulncheck.com/advisories/avideo-topmenu-plugin-stored-cross-site-scripting-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-56347?
- CVE-2026-56347 is a medium-severity vulnerability in Wwbn Avideo, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-06-20.
- How severe is CVE-2026-56347?
- Medium severity. CVSS v3 base score is 6.1 out of 10.