CVE-2021-40889

9.8 criticalEPSS 1.8%

Critical (9.8) in cmsuno project cmsuno. EPSS 1.8% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

9.8 critical

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

EPSS: 1.8% chance of exploitation in the next 30 days; higher than 79% of CVEs (scores of 2026-10-31)
CWE: CWE-94
Published: 2021-10-11
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

cmsuno_project:cmsuno

References

https://github.com/boiteasite/cmsuno/issues/19
https://github.com/boiteasite/cmsuno/issues/19

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