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9.8

CMS Made Simple allows remote code upload via cookie

CVE-2018-10085 · published 8 years ago
Summary

Versions of CMS Made Simple up to 2.2.6 can be tricked into running code supplied in a specially crafted browser cookie. This could let an attacker place malicious files on your server or delete existing files, potentially compromising your website. Update to a newer version of CMS Made Simple or apply the vendor's patch to stop the unsafe handling of cookie data.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
cmsmadesimple cms_made_simple <= 2.2.6
cpe:2.3:a:cmsmadesimple:cms_made_simple:*:*:*:*:*:*:*:*
Original advisory text
CMS Made Simple (CMSMS) through 2.2.6 allows PHP object injection because of an unserialize call in the _get_data function of \lib\classes\internal\class.LoginOperations.php. By sending a crafted c...
CMS Made Simple (CMSMS) through 2.2.6 allows PHP object injection because of an unserialize call in the _get_data function of \lib\classes\internal\class.LoginOperations.php. By sending a crafted cookie, a remote attacker can upload and execute code, or delete files.
References
Fix within
Internet-facing 3 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically (estimated)
  • Gives an attacker full control (estimated)
Severity
9.8 Critical
Exploitation
4% chance of attack within 30 days
Type
CWE-502Deserialization of Untrusted Data
Timeline
Published13 Apr 2018
Updated23 Oct 2026
First seen29 Sep 2026
Sources
CVE-2018-10085 · NVD
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