TI-2026-41567 Aliases CVE-2026-57744 GHSA-7fcw-pr2j-6ff2

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

MEDIUM 50CWE-502Published 2026-07-13 · Updated 2026-07-13

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-502.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00564 47th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
stmcan	RT-Theme 18 \| Extensions	up to 2.5	—	No fix listed	CNA

RT-Theme 18 | Extensions Vendorstmcan Affected up to 2.5 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-57744
2026-10-03 Alias added: GHSA-7fcw-pr2j-6ff2

References

Other 1

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

TI-2026-41566 WordPress RT-Theme 18 | Extensions plugin <= 2.5 - Local File Inclusion vulnerability CVSS 3.1HIGH 8.1
TI-2026-20202 WordPress NaturaLife Extensions plugin <= 2.1 - Local File Inclusion vulnerability CVSS 3.1HIGH 8.1
TI-2025-23385 WordPress RT-Theme 18 | Extensions plugin <= 2.4 - Local File Inclusion Vulnerability CVSS 3.1HIGH 7.5
TI-2026-41568 WordPress RT-Theme 18 | Extensions plugin <= 2.5 - Reflected Cross Site Scripting (XSS) vulnerability CVSS 3.1HIGH 7.1
TI-2026-28680 WordPress RT-Theme 18 | Extensions plugin <= 2.5 - Sensitive Data Exposure vulnerability CVSS 3.1MEDIUM 5.3
TI-2026-20203 WordPress NaturaLife Extensions plugin <= 2.1 - Reflected Cross Site Scripting (XSS) vulnerability CVSS 3.1HIGH 7.1

See all 7 →

Sources

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