CVE-2025-52552

FastGPT LastRoute Parameter on Login Page Vulnerable to Open Redirect and DOM-based XSS

State: Published
Severity: 5.5 Medium
Published: Jun 21, 2025
Updated: Jun 23, 2025
Reserved: Jun 18, 2025

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	5.5 Medium	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	GitHub_M

Weaknesses

CWE-601 URL Redirection to Untrusted Site ('Open Redirect')
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

Product	Versions
FastGPTlabring	< 4.9.12Affected

References

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