Incorrect permission assignment for critical resource in CMS Made Simple - CVE-2018-10519
Published: April 27, 2018 / Updated: August 8, 2020
Vulnerability identifier: #VU37150
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2018-10519
CWE-ID: CWE-732
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 authenticated user to execute arbitrary code.
CMS Made Simple (CMSMS) 2.2.7 contains a privilege escalation vulnerability from ordinary user to admin user by arranging for the eff_uid value within $_COOKIE[$this->_loginkey] to equal 1, because files in the tmp/ directory are accessible through HTTP requests. NOTE: this vulnerability exists because of an incorrect fix for CVE-2018-10084.
How to mitigate CVE-2018-10519
Install update from vendor's website.