CVE-2021-40889

Public Exploit

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.12% Top 25%
Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/boiteasite/cmsuno/issues/19 third party advisory issue tracking exploit

Frequently Asked Questions

What is the severity of CVE-2021-40889?
CVE-2021-40889 has been scored as a critical severity vulnerability.
How to fix CVE-2021-40889?
To fix CVE-2021-40889, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-40889 being actively exploited in the wild?
It is possible that CVE-2021-40889 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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