CVE Details
Basic Information
| Title | Anubis accepts crafted redirect URLs in pass-challenge ‘Try Again’ buttons |
|---|---|
| Type | cve |
| Published | 2025-07-26T03:30:28.951Z |
| Modified | 2025-07-26T03:32:47.245Z |
Product Information
| Vendor | TecharoHQ |
|---|---|
| Product | anubis |
| Version | < 1.21.3 |
CVSS Information
| Base Score | 5.1 (MEDIUM) |
|---|---|
| Attack Vector | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N |
AI Analysis
| AI Description | Anubis Web AI Firewall allows attackers to execute arbitrary JavaScript via crafted redirect URLs in pass-challenge buttons, fixed in version 1.21.3. |
|---|---|
| AI Severity | Medium |
| AI Vendor | TecharoHQ |
| AI Product | Anubis |
| AI Version | 1.21.2 and below |
Affected Products
- TecharoHQ anubis < 1.21.3
Additional Information
| CWE List | CWE-80, CWE-601 |
|---|---|
| Source | GitHub_M |
Description
Anubis is a Web AI Firewall Utility that weighs the soul of users’ connections using one or more challenges in order to protect upstream resources from scraper bots. In versions 1.21.2 and below, attackers can craft malicious pass-challenge pages that cause a user to execute arbitrary JavaScript code or trigger other nonstandard schemes. An incomplete version of this fix was tagged at 1.21.2 and then the release process was aborted upon final testing. To work around this issue: block any requests to the /.within.website/x/cmd/anubis/api/pass-challenge route with the ?redir= parameter set to anything that doesn’t start with the URL scheme http, https, or no scheme (local path redirect). This was fixed in version 1.21.3.