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9.8

Windsor WordPress theme lets attackers run code

CVE-2026-66563 · published 5 days ago
Summary

The Windsor theme for WordPress (versions up to 2.10) can be tricked into executing malicious code without any login. This could let a hacker take control of your site or steal data. Update to a newer version of the theme or replace it with a secure alternative as soon as possible.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
themerex windsor <= 2.10
Original advisory text
WordPress Windsor theme <= 2.10 - PHP Object Injection vulnerability
Unauthenticated PHP Object Injection in Windsor <= 2.10 versions.
References
Fix within
Internet-facing 3 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically
  • Gives an attacker full control
Severity
9.8 Critical
Exploitation
<1% chance of attack within 30 days
Type
CWE-502Deserialization of Untrusted Data
Timeline
Published10 Oct 2026
Updated15 Oct 2026
First seen10 Oct 2026
Sources
CVE-2026-66563 · NVD
CVE-2026-66563 · MITRE
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