XSS in Wwbn Avideo
CVE-2026-84477
AVideo Live_schedule::setTitle() and setDescription() store POST input without sanitization, allowing users with streaming permission to inject malicious scripts. Unauthenticated attackers can access remindMe.php to execute stored XSS payloads in victim browsers without requiring authentication.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (20.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 20.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001
Affected products
Weakness classification (CWE)
References
- github.com/WWBN/AVideo/security/advisories/GHSA-625v-vrhq-g274 (vendor-advisory)
- www.vulncheck.com/advisories/avideo-stored-xss-via-live-schedule-title-descript… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-84477?
- CVE-2026-84477 is a medium-severity vulnerability in Wwbn Avideo, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-09-01.
- How severe is CVE-2026-84477?
- Medium severity. CVSS v3 base score is 5.4 out of 10.