CVE-2021-47703CWE-918

OpenBMCS Server Side Request Forgery (SSRF) via /php/query.php

Medium · published December 9, 2025

CVSS v4.0
6.9
EPSS
0%
Percentile
23.9
In the wild
Unconfirmed
What it is

🚨 An unauthenticated SSRF vulnerability in OpenBMCS 2.4 lets attackers make HTTP requests to any external domain, bypassing your firewalls like a delivery driver who ignores the no-entry sign! ⚠️ Think of it like a sneaky delivery person who can wander around your office, delivering packages to anyone they want without needing a proper ID check. This flaw allows attackers to send requests to any internal service, potentially compromising your entire network! If exploited, an attacker could survey your internal network, potentially hijacking live sessions or accessing sensitive information. This could lead to unauthorized access to critical systems and data leaks, which can be a headache for any organization!

Put simply

Think of it like a sneaky delivery person who can wander around your office, delivering packages to anyone they want without needing a proper ID check. This flaw allows attackers to send requests to any internal service, potentially compromising your entire network! This SSRF vulnerability allows attackers to manipulate the 'ip' parameter in requests, forcing the application to make HTTP requests to arbitrary hosts without proper authentication or validation.

What to do

If exploited, an attacker could survey your internal network, potentially hijacking live sessions or accessing sensitive information. This could lead to unauthorized access to critical systems and data leaks, which can be a headache for any organization! To protect against this vulnerability, patch OpenBMCS to the latest version immediately. Additionally, implement strict input validation for the 'ip' parameter and consider monitoring outbound requests for suspicious activity. You've got this! With these steps, you can lock down your network and keep those delivery drivers in check! 🛡️

The record
Technical detail
CVSS v4.0
6.9 · MEDIUM
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
EPSS
0.00321 · 23.9th percentile
Weakness
CWE-918 · Server-Side Request Forgery (SSRF)
Published
2025-12-09T20:36Z
EPSS history
Timeline
  • 09 DEC 20:36Z
    OpenBMCS Server Side Request Forgery (SSRF) via /php/query.php
    cvelistv5