CVE-2021-47703 MEDIUM

CVE-2021-47703: OpenBMCS Server Side Request Forgery (SSRF) via /php/query.php

Vendor Open Bmcs
Product OpenBMCS
Weakness CWE-918 · SSRF
Published December 9, 2025
Last update April 7, 2026

CVSS base score

6.9/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

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

What the vulnerability does

01Description

OpenBMCS 2.4 contains an unauthenticated SSRF vulnerability that allows attackers to bypass firewalls and initiate service and network enumeration on the internal network through the affected application, allowing hijacking of current sessions. Attackers can specify an external domain in the 'ip' parameter to force the application to make an HTTP request to an arbitrary destination host.

Key dates

02Disclosure timeline

December 9, 2025 CVE published
April 7, 2026 Record updated