CVE-2025-64716

Anubis vulnerable to possible XSS via redir parameter when using subrequest auth mode

Published Nov 13, 2025 CVSS 4.0 · 5.1 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-cf57-c578-7jvv Anubis vulnerable to possible XSS via redir parameter when using subrequest auth mode
History
Type Values Removed Values Added
First Time appeared Techarohq
Techarohq anubis
Vendors & Products Techarohq
Techarohq anubis
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Anubis vulnerable to possible XSS via redir parameter when using subrequest auth mode
Weaknesses CWE-601
CWE-79
References
Metrics cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:H/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Nov 13, 2025, 2:34 PM
Reserved
Nov 10, 2025, 2:07 PM
Status
Deferred
Published
Nov 13, 2025, 3:16 AM
Modified
Oct 7, 2026, 9:10 PM