CVE-2021-47701

HIGH

Openbmcs - Missing Authorization

Title source: rule

Description

OpenBMCS 2.4 allows an attacker to escalate privileges from a read user to an admin user by manipulating permissions and exploiting a vulnerability in the update_user_permissions.php script. Attackers can submit a malicious HTTP POST request to PHP scripts in '/plugins/useradmin/' directory.

Exploits (1)

exploitdb WORKING POC

by LiquidWorm · textwebappsphp

https://www.exploit-db.com/exploits/50669

View Code ZIP pw:eip

References (3)

[Exploit, Third Party Advisory, VDB Entry] https://www.exploit-db.com/exploits/50669

[Exploit, Third Party Advisory] https://www.zeroscience.mk/en/vulnerabilities/ZSL-2022-5693.php

[Third Party Advisory] https://www.vulncheck.com/advisories/openbmcs-user-management-privilege-escalation

Scores

CVSS v3 8.8

EPSS 0.0015

EPSS Percentile 36.0%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-862

Status published

Products (2)

OPEN BMCS/OpenBMCS 2.4

openbmcs/openbmcs 2.4

Published Dec 09, 2025

Tracked Since Feb 18, 2026