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Case File

CVE-2021-40889

CRITICAL · CVSS 9.8 EPSS 1.79% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-10-11 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
code execution
GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2021-40889
Severity
CRITICAL
CVSS
9.8
EPSS
1.79%

Original NVD Description

CMSUno version 1.7.2 is affected by a PHP code execution vulnerability. sauvePass action in {webroot}/uno/central.php file calls to file_put_contents() function to write username in password.php file when a user successfully changed their password. The attacker can inject malicious PHP code into password.php and then use the login function to execute code.

Related CVEs

Other vulnerabilities affecting the same vendor(s)