Endian Firewall version 3.3.25 and prior allow stored cross-site scripting (XSS) via the user parameter to /cgi-bin/proxyuser.cgi.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

1. Apr 2, 2026 · NIST NVD

   Detected

   Endian Firewall version 3.3.25 and prior allow stored cross-site scripting (XSS) via the user parameter to /cgi-bin/proxyuser.cgi. An authenticated attacker can inject arbitrary JavaScript that is stored and executed when other users view the affected page.

2. Jul 24, 2026 · NIST NVD

   Updated

   Endian Firewall version 3.3.25 and prior allow stored cross-site scripting (XSS) via the user parameter to /cgi-bin/proxyuser.cgi. An authenticated attacker can inject arbitrary JavaScript that is stored and executed when other users view the affected page.

Affected

• cpe endian/firewall communityversion unspecified

Sources

• CVE.orgVulnerability recordCVE-2026-34813

  Official CVE identifier

  cve.org
• NIST NVDVulnerability recordCVE-2026-34813

  Endian Firewall version 3.3.25 and prior allow stored cross-site scripting (XSS) via the user parameter to /cgi-bin/proxyuser.cgi. An authenticated attacker can inject arbitrary JavaScript that is stored and executed when other users view the affected page.

  nvd.nist.gov

References

• Release Notes · help.endian.com
• Third Party Advisory · vulncheck.com