Path traversal in CMS Made Simple - CVE-2018-9921
Published: April 23, 2018 / Updated: August 8, 2020
Vulnerability identifier: #VU37172
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2018-9921
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: cmsmadesimple.org
Affected software:
CMS Made Simple
CMS Made Simple
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.
In CMS Made Simple 2.2.7, a Directory Traversal issue makes it possible to determine the existence of files and directories outside the web-site installation directory, and determine whether a file has contents matching a specified checksum. The attack uses an admin/checksum.php?__c= request.
How to mitigate CVE-2018-9921
Install update from vendor's website.