CVE-2026-18100
MEDIUM
6,4
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: changed
Confidentiality: low
Integrity: low
Availability: none
Description
AI Translation Available
The MetForm – Contact Form, Survey, Quiz, & Custom Form Builder for Elementor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'mf_form_id' Widget Setting in all versions up to, and including, 4.1.8 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The payload bypasses Elementor's save-time wp_kses_post filter because it contains no HTML tags, and MetForm's own str_replace transformation of script tags into JavaScript template literal expressions provides an additional delivery path.
79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
StableCommon Consequences
Security Scopes Affected:
Access Control
Confidentiality
Integrity
Availability
Potential Impacts:
Bypass Protection Mechanism
Read Application Data
Execute Unauthorized Code Or Commands
Applicable Platforms
Technologies:
AI/ML, Web Based, Web Server
https://plugins.trac.wordpress.org/browser/metform/tags/4.1.4/controls/form-pic…
https://plugins.trac.wordpress.org/browser/metform/tags/4.1.4/utils/util.php#L6…
https://plugins.trac.wordpress.org/browser/metform/tags/4.1.4/widgets/form.php#…
https://plugins.trac.wordpress.org/browser/metform/tags/4.1.8/controls/form-pic…
https://plugins.trac.wordpress.org/browser/metform/tags/4.1.8/utils/util.php#L6…
https://plugins.trac.wordpress.org/browser/metform/tags/4.1.8/widgets/form.php#…
https://plugins.trac.wordpress.org/changeset?reponame=&new=3639278%40metform%2F…
https://www.wordfence.com/threat-intel/vulnerabilities/id/976f1f01-ad5d-413e-a2…