What’s Vulnerable › Vulnerabilities

CVE-2021-47701: OpenBMCS User Management Privilege Escalation

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-12-09 · updated 2026-06-17
• Weakness: CWE-862

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.

Affected products

• OPEN BMCS OpenBMCS: 2.4

References

• https://www.exploit-db.com/exploits/50669
• https://www.vulncheck.com/advisories/openbmcs-user-management-privilege-escalation
• https://www.zeroscience.mk/en/vulnerabilities/ZSL-2022-5693.php

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