VulnerabilityModified

CVE-2019-19373

HIGH 7.5EPSS 4.80%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (4.80%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

An issue was discovered in Squiz Matrix CMS 5.5.0 prior to 5.5.0.3, 5.5.1 prior to 5.5.1.8, 5.5.2 prior to 5.5.2.4, and 5.5.3 prior to 5.5.3.3 where a user can trigger arbitrary unserialization of a PHP object from a packages/cms/page_templates/page_remote_content/page_remote_content.inc POST parameter during processing of a Remote Content page type. This unserialization can be used to trigger the inclusion of arbitrary files on the filesystem (local file inclusion), and results in remote code execution.

CVSS 3.1: 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS: 4.80% probability · 91th percentile
CISA KEV: Not listed
Weakness: CWE-502
Affected: squiz/matrix
Source: cve@mitre.org

References

http://packetstormsecurity.com/files/155671/Squiz-Matrix-CMS-5.5.x.x-Code-Execution-Information-Disclosure.htmlExploit, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2019/Dec/34Exploit, Mailing List, Third Party Advisory
https://matrix.squiz.net/releases/5.5/5.5.3.3Release Notes
https://zxsecurity.co.nz/wp-content/uploads/2019/12/ZX%20Security%20Advisory%20-%20Squiz%20Matrix%20CMS%20-%20Multiple%20Vulnerabilities.pdfExploit, Third Party Advisory
http://packetstormsecurity.com/files/155671/Squiz-Matrix-CMS-5.5.x.x-Code-Execution-Information-Disclosure.htmlExploit, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2019/Dec/34Exploit, Mailing List, Third Party Advisory
https://matrix.squiz.net/releases/5.5/5.5.3.3Release Notes
https://zxsecurity.co.nz/wp-content/uploads/2019/12/ZX%20Security%20Advisory%20-%20Squiz%20Matrix%20CMS%20-%20Multiple%20Vulnerabilities.pdfExploit, Third Party Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.