CVE-2021-47701

8.7 highEPSS 0.5%

High (8.7) in openbmcs openbmcs. EPSS 0.5% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

8.7 high

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

CVSS 3.1

8.8 high

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

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 41% of CVEs (scores of 2026-10-31)
CWE: CWE-862
Published: 2025-12-09
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

openbmcs:openbmcs

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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