What is CVE-2026-84476?

CVE-2026-84476 is a high-severity vulnerability in Wwbn Avideo, classified under Authentication Bypass by Spoofing. CVSS score: 7.5/10. Published 2026-09-01.

How severe is CVE-2026-84476?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Wwbn Avideo

CVE-2026-84476

WWBN AVideo fails to validate trusted proxies before accepting X-Real-IP and X-Forwarded-For headers, allowing attackers to spoof the client address used by enforceRateLimit(). Attackers can rotate the header value per request to bypass login rate limiting and perform unlimited credential guessing attacks.

Published 2026-09-01 · last modified 2026-09-08.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (36.2th percentile), scored 2026-10-17.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 36.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.002

Affected products

Wwbn Avideo

Weakness classification (CWE)

CWE-290 — Authentication Bypass by Spoofing

References

github.com/WWBN/AVideo/security/advisories/GHSA-gg65-574p-h4wc (vendor-advisory)
www.vulncheck.com/advisories/wwbn-avideo-authentication-bypass-via-x-real-ip-he… (third-party-advisory)

Frequently asked questions

What is CVE-2026-84476?: CVE-2026-84476 is a high-severity vulnerability in Wwbn Avideo, classified under Authentication Bypass by Spoofing. CVSS score: 7.5/10. Published 2026-09-01.
How severe is CVE-2026-84476?: High severity. CVSS v3 base score is 7.5 out of 10.