CVE-2025-64716: XSS

Description

Anubis is a Web AI Firewall Utility that challenges users' connections in order to protect upstream resources from scraper bots. Prior to version 1.23.0, when using subrequest authentication, Anubis did not perform validation of the redirect URL and redirects user to any URL scheme. While most modern browsers do not allow a redirect to `javascript:` URLs, it could still trigger dangerous behavior in some cases. Anybody with a subrequest authentication may be affected. Version 1.23.0 contains a fix for the issue.

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Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

CWE-601 CWE-601

References

Other References

https://github.com/TecharoHQ/anubis/commit/7ed1753fcced351c81961bf520a7bfb2caac6e88 https://github.com/TecharoHQ/anubis/security/advisories/GHSA-cf57-c578-7jvv https://pkg.go.dev/vuln/GO-2025-4086

Frequently Asked Questions

What is CVE-2025-64716? +

Anubis is a Web AI Firewall Utility that challenges users' connections in order to protect upstream resources from scraper bots. Prior to version 1.23.0, when using subrequest authentication, Anubis did not perform validation of the redirect URL and redirects user to any URL scheme. While most modern browsers do not allow a redirect to `javascript:` URLs, it could still trigger dangerous behavior in some cases. Anybody with a subrequest authentication may be affected. Version 1.23.0 contains a fix for the issue.

How do I check if I'm vulnerable to CVE-2025-64716? +

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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CVE-2025-64716