CVE & CISA-KEV Catalog

CVE-2019-19373

HIGHEPSS 91th pctl
7.5
CVSS v3
NVD

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.

CWE-502Deserialization of Untrusted Data

How to fix

Remediation Available
matrixNVD
Affected:>= 5.5.3.0, < 5.5.3.3Fixed in:5.5.3.3CVE-2019-19373derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityNone
AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploit Intelligence

4.80%probability of exploitation in 30 days
91stpercentile

High risk: more likely to be exploited than 91% of all known CVEs.

References

Release Notes1

Related Vulnerabilities

Other CWE-502 (Deserialization of Untrusted Data) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2023-0669High7.2100%KEV + RansomFix
CVE-2021-44228Critical10.0100%KEV + RansomFix
CVE-2021-35464Critical9.8100%KEV + RansomFix
CVE-2023-29300Critical9.8100%KEV + Ransom-
CVE-2025-53770Critical9.8100%KEV + RansomFix
CVE-2022-47986Critical9.8100%KEV + Ransom-
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.