Vulnerability Description
The Widget Options – Advanced Conditional Visibility for Gutenberg Blocks & Classic Widgets plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 4.2.2 via the Display Logic feature. This is due to the plugin using eval() on user-supplied Display Logic expressions with an insufficient blocklist/allowlist that can be bypassed using array_map with string concatenation, combined with a lack of authorization enforcement on the extended_widget_opts_block attribute. This makes it possible for authenticated attackers, with Contributor-level access and above, to execute code on the server. The vulnerability was partially patched in version 4.2.0.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/widget-options/trunk/includes/extras.
- https://plugins.trac.wordpress.org/browser/widget-options/trunk/includes/extras.
- https://plugins.trac.wordpress.org/browser/widget-options/trunk/includes/widgets
- https://plugins.trac.wordpress.org/changeset/3481338/
- https://plugins.trac.wordpress.org/changeset/3514411/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/68023557-fc92-4cf6-96b
FAQ
What is CVE-2026-2052?
CVE-2026-2052 is a vulnerability with a CVSS score of 8.8 (HIGH). The Widget Options – Advanced Conditional Visibility for Gutenberg Blocks & Classic Widgets plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 4.2.2 via ...
How severe is CVE-2026-2052?
CVE-2026-2052 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-2052?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.