Deserialization in Squiz Matrix
CVE-2019-19373
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.
Vulnerability class: Insecure Deserialization
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.048 (91.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 91.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.048 · newest: 0.048 · change: 0.000
Affected products
Weakness classification (CWE)
References
- matrix.squiz.net/releases/5.5/5.5.3.3 (Release Notes)
- zxsecurity.co.nz/wp-content/uploads/2019/12/ZX Security Advisory - Squiz Matrix… (Exploit, Third Party Advisory)
- seclists.org/fulldisclosure/2019/Dec/34 (mailing-list, Exploit, Mailing List, Third Party Advisory)
- packetstormsecurity.com/files/155671/Squiz-Matrix-CMS-5.5.x.x-Code-Execution-In… (Exploit, VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-19373?
- CVE-2019-19373 is a high-severity vulnerability in Squiz Matrix, classified under Deserialization of Untrusted Data. CVSS score: 7.5/10. Published 2019-12-11.
- How severe is CVE-2019-19373?
- High severity. CVSS v3 base score is 7.5 out of 10.