CVE Catalog

CVE-2026-89239

MediumCVSS 6.1
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.16%

6th percentile - higher than 6% of all known CVEs

Summary

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.

Risk Assessment

Allows execution of arbitrary JavaScript in the victim's browser within the AVideo origin, potentially leading to session theft, account takeover, or content manipulation. The risk affects any user who follows a crafted link.

Recommendation

Update AVideo to a version containing the fix or apply a workaround that encodes/escapes the Referer header value before placing it in the JavaScript comment. Until a patch is available, consider restricting server-side trust in the Referer header.

Other vulnerabilities in AVideo

See all
Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS