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9.8

Jacqueline theme may run malicious code on your site

CVE-2026-78531 · published 5 days ago
Summary

The Jacqueline theme for WordPress, version 2.22 and earlier, can be tricked into executing code without any login. This could let an attacker take control of your website or steal data. Update the theme to a newer version 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 jacqueline <= 2.22
Original advisory text
WordPress Jacqueline theme <= 2.22 - PHP Object Injection vulnerability
Unauthenticated PHP Object Injection in Jacqueline <= 2.22 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-2026-78531 · NVD
CVE-2026-78531 · MITRE
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