CVE-2019-19373

HIGH

7.5

CVSS Score

Published: December 11, 2019 at 07:04 PM UTC

Updated: June 17, 2026 at 02:26 AM UTC

1 product affected across 1 vendorMatrix

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Severity

HIGH7.5

Exploit prediction

EPSS 5%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Matrix · Squiz

95%

5.5.0.0 ≤ v < 5.5.0.35.5.1.0 ≤ v < 5.5.1.85.5.2.0 ≤ v < 5.5.2.45.5.3.0 ≤ v < 5.5.3.3

Affected range stops below 5.5.0.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.5.1.8, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.5.2.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.5.3.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (4)

x_refsource_MISCExploitThird Party AdvisoryVDB Entry

Source: [email protected]

http://packetstormsecurity.com/files/155671/Squiz-Matrix-CMS-5.5.x.x-Code-Execution-Information-Disclosure.html

Mailing Listx_refsource_FULLDISCExploitThird Party Advisory

Source: [email protected]

http://seclists.org/fulldisclosure/2019/Dec/34

x_refsource_MISCRelease Notes

Source: [email protected]

https://matrix.squiz.net/releases/5.5/5.5.3.3

x_refsource_MISCExploitThird Party Advisory

Source: [email protected]

https://zxsecurity.co.nz/wp-content/uploads/2019/12/ZX%20Security%20Advisory%20-%20Squiz%20Matrix%20CMS%20-%20Multiple%20Vulnerabilities.pdf

CVSS

7.5HIGH[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: NONE
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-502

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