VULNERABILITY INTELLIGENCE

CVE-2023-23596

CVSS score8.8 HIGH
EPSS probability15.20%
CISA KEVNot currently listed
Published2023-01-20
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

jc21 NGINX Proxy Manager through 2.9.19 allows OS command injection. When creating an access list, the backend builds an htpasswd file with crafted username and/or password input that is concatenated without any validation, and is directly passed to the exec command, potentially allowing an authenticated attacker to execute arbitrary commands on the system. NOTE: this is not part of any NGINX software shipped by F5.

Weakness classification

  • CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Primary references