CVE-2026-89239WWBN AVideo Reflected XSS via Referer Header Comment Breakout
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No exploitation reported and no EPSS estimate yet.
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WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a reflected cross-site scripting vulnerability in the showAlertMessage() function that inserts the raw Referer header into a JavaScript comment without encoding. Attackers can craft a Referer header containing */ to close the comment and inject arbitrary JavaScript that executes in the site origin for visitors arriving from the attacker-controlled page.
- CVSS
- 6.1 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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
WWBN AVideo wwbn:avideo (from the name) | through c3edcc274c389816d434acadac07ee78eaf330c1 | CNA record |
References
- https://github.com/WWBN/AVideo/security/advisories/GHSA-3pp9-g99w-qw3jvendor-advisory
- https://www.vulncheck.com/advisories/wwbn-avideo-reflected-xss-via-referer-header-comment-breakoutthird-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.