What is CVE-2021-40889?

CVE-2021-40889 is a critical-severity vulnerability in Cmsuno Project, classified under Code Injection. CVSS score: 9.8/10. Published 2021-10-11.

How severe is CVE-2021-40889?

Critical severity. CVSS v3 base score is 9.8 out of 10.

RCE in Cmsuno Project

CVE-2021-40889

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.

Vulnerability class: RCE (Remote Code Execution)

EPSS: 0.018 (76.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Cmsuno_project Cmsuno — versions 1.7.2
N/a — versions n/a

Weakness classification (CWE)

CWE-94 — Code Injection

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2021-40889?: CVE-2021-40889 is a critical-severity vulnerability in Cmsuno Project, classified under Code Injection. CVSS score: 9.8/10. Published 2021-10-11.
How severe is CVE-2021-40889?: Critical severity. CVSS v3 base score is 9.8 out of 10.