CVE-2026-57744 PUBLISHED

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

Assigner: Patchstack
Reserved: 25.06.2026 Published: 13.07.2026 Updated: 13.07.2026

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.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 9.8

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	stmcan
Product	RT-Theme 18 \| Extensions
Versions	Default: unaffected affected from 0 to 2.5 (incl.)

Credits

Bonds | Patchstack Bug Bounty Program finder

References

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

Problem Types

Deserialization of Untrusted Data CWE

Impacts

Object Injection