CVE-2021-40889

9.8 CRITICAL

CMSUno version 1.7.2 is affected by a PHP code execution vulnerability

Published: 2021-10-11 · Last updated: 2026-06-17

Severity and scoring

CVSS: 9.8 CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE: CWE-94

Affected products

Vendor	Product
cmsuno_project	cmsuno

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.

Source: NVD

References

[NVD]https://nvd.nist.gov/vuln/detail/CVE-2021-40889
[Exploit reference]https://github.com/boiteasite/cmsuno/issues/19
[Exploit reference]https://github.com/boiteasite/cmsuno/issues/19

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