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Vulnerability record · CVE-2026-2052 · published 2 May 2026

CVE-2026-2052: Code injection vulnerability

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.

8.8 CVSS 3.1 High EPSS 0.77% · top 46.1% CWE-94 · Code injection Deferred
8.8CVSS 3.1 base score
0.77%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

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:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

LinkTags
https://plugins.trac.wordpress.org/browser/widget-options/trunk/includes/extras.php#L495
https://plugins.trac.wordpress.org/browser/widget-options/trunk/includes/extras.php#L534
https://plugins.trac.wordpress.org/browser/widget-options/trunk/includes/widgets/gutenberg/gutenberg-toolbar.php#L843
https://plugins.trac.wordpress.org/changeset/3481338/
https://plugins.trac.wordpress.org/changeset/3514411/
https://www.wordfence.com/threat-intel/vulnerabilities/id/68023557-fc92-4cf6-96b4-405ff5a5fd5a?source=cve

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Source: NIST National Vulnerability Database (record CVE-2026-2052), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.