CVE-2026-57744

CRITICAL 9.8

WordPress RT-Theme 18 | Extensions plugin <= 2.5 - PHP Object Injection vulnerability

CVSS Score

9.8

EPSS Score

0.6%

EPSS Percentile

43th

Deserialization of Untrusted Data vulnerability in stmcan RT-Theme 18 | Extensions rt18-extensions allows Object Injection.This issue affects RT-Theme 18 | Extensions: from n/a through <= 2.5.

CWE	CWE-502
Vendor	stmcan
Product	rt-theme 18 \| extensions
Published	Jul 13, 2026
Last Updated	Jul 13, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

stmcan / RT-Theme 18 | Extensions

0 ≤ 2.5

References

NVD ↗ CVE.org ↗ EPSS Data ↗

patchstack.com: https://patchstack.com/database/Wordpress/Plugin/rt18-extensions/vulnerability/wordpress-rt-theme-18-extensions-plugin-2-5-php-object-injection-vulnerability?_s_id=cve

Credits

Bonds | Patchstack Bug Bounty Program