CVE-2026-93940: ThemeREX Greeny theme PHP object injection

CVE-2026-93940 · Severity: critical · CVSS 9.8 · Published 2026-10-10

The Greeny WordPress theme is vulnerable to PHP object injection, allowing unauthenticated attackers to manipulate how the site processes data and execute arbitrary code on the server. This could lead to full site compromise, data theft, or installation of malware. The vulnerability affects versions up to 2.10.0 and has no official patch available.

Vendors: ThemeREX Group.

Quick answers

Is CVE-2026-93940 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-93940 being exploited in the wild.
How severe is CVE-2026-93940?
Critical severity, with a CVSS score of 9.8, published 10 October 2026.
Which products and versions are affected?
ThemeREX Group Greeny up to 2.10.0.
Is there a fix for CVE-2026-93940?
No fixed version is recorded yet. Apply a virtual patch or Web Application Firewall rule to block malicious requests targeting the object injection vector until an official patch is available. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-93940 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-93940?
Check whether you run ThemeREX Group Greeny at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Apply a virtual patch or Web Application Firewall rule to block malicious requests targeting the object injection vector until an official patch is available.

Technical details

A PHP object injection vulnerability in the Greeny WordPress theme allows unauthenticated remote attackers to inject malicious serialized objects that are deserialized without proper validation. Exploitation requires no authentication or user interaction and results in arbitrary code execution on the affected server. No official fix has been released as of the advisory date.

Affected products

  • ThemeREX Group Greeny up to 2.10.0

Timeline

  • 2026-10-10: disclosed
  • 2026-02-28: reported

References

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