FastGPT — Xss (CVE-2025-52552)
Date: 2025-06
Affected: fastgpt/fastgpt
Attack vector: xss
Category: vulnerability-disclosure
Severity: Medium
CVE: CVE-2025-52552
CWE: CWE-601
CWE-79
CVSS: 6.1 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)

FastGPT is an AI Agent building platform. Prior to version 4.9.12, the LastRoute Parameter on login page is vulnerable to open redirect and DOM-based XSS. Improper validation and lack of sanitization of this parameter allows attackers execute malicious JavaScript or redirect them to attacker-controlled sites. This issue has been patched in version 4.9.12.


Mitigations:

Architectural layers (MAESTRO):