What’s Vulnerable › Vulnerabilities

CVE-2024-3494: Mesmerize Companion <= 1.6.148 - Authenticated (Contributor+) Stored Cross-Site Scripting via mesmerize_contact_form Shortcode

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-08 · updated 2026-06-17
• Weakness: CWE-79

Description

The Mesmerize Companion plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'mesmerize_contact_form' shortcode in all versions up to, and including, 1.6.148 due to insufficient input sanitization and output escaping on user supplied attributes. 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.

Affected products

• horearadu Mesmerize Companion: through 1.6.148

References

• https://plugins.trac.wordpress.org/changeset/3078422/mesmerize-companion/trunk/theme-data/mesmerize/functions.php
• https://www.wordfence.com/threat-intel/vulnerabilities/id/521bb5a3-0a0c-4693-a87d-fabb64f1ad4f?source=cve
• https://plugins.trac.wordpress.org/changeset/3078422/mesmerize-companion/trunk/theme-data/mesmerize/functions.php
• https://www.wordfence.com/threat-intel/vulnerabilities/id/521bb5a3-0a0c-4693-a87d-fabb64f1ad4f?source=cve

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