CVE-2025-52552

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

Published Jun 21, 2025 CVSS 4.0 · 5.5 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-18916 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.
History
Type Values Removed Values Added
First Time appeared Fastgpt
Fastgpt fastgpt
CPEs cpe:2.3:a:fastgpt:fastgpt:*:*:*:*:*:*:*:*
Vendors & Products Fastgpt
Fastgpt fastgpt
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title FastGPT LastRoute Parameter on Login Page Vulnerable to Open Redirect and DOM-based XSS
Weaknesses CWE-601
CWE-79
References
Metrics cvssV4_0

{'score': 5.5, '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Jun 23, 2025, 5:42 PM
Reserved
Jun 18, 2025, 3:55 AM
Status
Analyzed
Published
Jun 21, 2025, 3:15 AM
Modified
Jun 17, 2026, 9:36 AM