CVE-2025-52552 MEDIUM

CVE-2025-52552: FastGPT LastRoute Parameter on Login Page Vulnerable to Open Redirect and DOM-based XSS

Vendor Labring
Product FastGPT
Weakness CWE-601 · Open redirect
Published June 21, 2025
Last update June 23, 2025

CVSS base score

5.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

June 21, 2025 CVE published
June 23, 2025 Record updated