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PatchSiren cyber security CVE debrief

CVE-2025-60205 ThemeREX CVE debrief

A critical vulnerability, CVE-2025-60205, was disclosed in ThemeREX Addons versions <= 2.36.1.1, allowing unauthenticated PHP Object Injection. With a CVSS score of 9.8, this vulnerability poses a significant risk to affected installations. Organizations using this plugin should prioritize immediate action to mitigate potential exploitation. The vulnerability was made public on June 17, 2026, and no ransomware campaign use is currently known. Given its severity and potential impact, swift defensive measures are essential.

Vendor
ThemeREX
Product
ThemeREX Addons
CVSS
CRITICAL 9.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-17
Original CVE updated
2026-06-17
Advisory published
2026-06-17
Advisory updated
2026-06-17

Who should care

Administrators and security teams responsible for WordPress installations using ThemeREX Addons versions <= 2.36.1.1 should be aware of this vulnerability. Due to its critical severity and potential for exploitation, immediate attention is required to secure affected installations.

Technical summary

CVE-2025-60205 is an unauthenticated PHP Object Injection vulnerability in ThemeREX Addons. This vulnerability, with a CVSS score of 9.8, allows attackers to inject PHP objects without authentication, potentially leading to code execution, data breaches, or system compromise. The vulnerability affects versions <= 2.36.1.1 of the plugin. The CVSS vector is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H, indicating a high impact on confidentiality, integrity, and availability.

Defensive priority

critical

Recommended defensive actions

  • Update ThemeREX Addons to a version beyond 2.36.1.1 immediately.
  • Implement web application firewalls (WAFs) to detect and block suspicious traffic.
  • Restrict access to the plugin's functionality to authenticated users only.
  • Regularly monitor plugin and WordPress core for updates and apply them promptly.
  • Consider using security plugins that provide additional protection against object injection attacks.
  • Limit the use of PHP object serialization in custom code if possible.
  • Enhance logging and monitoring to detect potential exploitation attempts.

Evidence notes

The information provided is based on data from the National Vulnerability Database (NVD) and Patchstack. The CVE record and NVD detail pages offer comprehensive information about the vulnerability. However, specific details about the vendor and affected products are limited due to the 'Unknown Vendor' designation and missing product information.

Sources and references

Verified primary and authoritative sources

  • CVE-2025-60205 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2025-60205

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2025-60205 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2025-60205

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.