Reflected Cross-Site Scripting Vulnerability in WWBN AVideo
CVE-2026-89239

5.3MEDIUM

Key Information:

Vendor

Wwbn

Status
Avideo
Vendor
CVE Published:
11 September 2026

What is CVE-2026-89239?

The WWBN AVideo application has a reflected cross-site scripting vulnerability in its showAlertMessage() function. This issue arises when the application improperly sanitizes the Referer header, allowing attackers to manipulate this header. By inserting specially crafted input that terminates JavaScript comments, an attacker can inject arbitrary JavaScript code into the site’s context. This vulnerability poses significant risks as it can be exploited to execute malicious scripts for users who visit the site from compromised pages.

Affected Version(s)

AVideo 0

References

https://github.com/WWBN/AVideo/security/advisories/GHSA-3...
vendor-advisory
https://www.vulncheck.com/advisories/wwbn-avideo-reflecte...
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

santhreal
.