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9.8

Anesta WordPress theme lets attackers run code

CVE-2026-66567 · published today
Summary

If you use the Anesta theme version 1.5.3 or older, anyone can send specially crafted data to your site and cause it to execute unwanted commands. This could let an attacker take control of your WordPress installation or steal information. Update the theme to the latest version or switch to a different, actively maintained theme 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
ancorathemes anesta <= 1.5.3
Original advisory text
WordPress Anesta theme <= 1.5.3 - PHP Object Injection vulnerability
Unauthenticated PHP Object Injection in Anesta <= 1.5.3 versions.
References
Fix within
Internet-facing 3 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically (estimated)
  • Gives an attacker full control (estimated)
Severity
9.8 Critical
Type
CWE-502Deserialization of Untrusted Data
Timeline
Published10 Oct 2026
Updated10 Oct 2026
First seen10 Oct 2026
Sources
CVE-2026-66567 · NVD
CVE-2026-66567 · MITRE
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