CVE-2026-84476 (CVSS 7.5)

Description

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.

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CVSS v3.1 Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness Type (CWE)

CWE-290 CWE-290

References

Other References

https://github.com/WWBN/AVideo/security/advisories/GHSA-gg65-574p-h4wc https://www.vulncheck.com/advisories/wwbn-avideo-authentication-bypass-via-x-real-ip-header

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2026-84476? +

CVE-2026-84476 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

How do I check if I'm vulnerable to CVE-2026-84476? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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