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Mesmerize Companion vulnerabilities
Mesmerize Companion has 3 known vulnerabilities in this database. The most recent published record is dated 19 Feb 2026.
- Known vulnerabilities
- 3
- Active installs
- 50,000+
- Latest version
- 1.6.175
- Last updated
- 12 Aug 2026
- Most recent
- 19 Feb 2026
Find it in your WordPress dashboard under Plugins. Severity is based on the CVSS score published with the CVE where one is available.
| Vulnerability | Severity | Affected | Fix | Published |
|---|---|---|---|---|
| Broken access control CVE-2025-12027 | Medium 4.3 | Up to 1.6.158 | Fixed in a later version (latest 1.6.175) | 19 Feb 2026 |
| Cross-site scripting (XSS) CVE-2024-3494 | Medium 6.4 | Up to 1.6.148 | Fixed in a later version (latest 1.6.175) | 8 May 2024 |
| Cross-site scripting (XSS) CVE-2022-4481 | Medium 5.4 | Before 1.6.135 | Fixed in 1.6.135 | 16 Jan 2023 |
Read the published descriptions
- CVE-2025-12027, 19 Feb 2026
- The Mesmerize Companion plugin for WordPress is vulnerable to unauthorized access and modification of data due to a missing capability check on the "openPageInCustomizer" and "openPageInDefaultEditor" functions in all versions up to, and including, 1.6.158. This makes it possible for authenticated attackers - with subscriber level access and above, on websites with the Mesmerize theme activated - to mark arbitrary pages as maintainable, wrap their content in custom sections, change page template metadata, and toggle the default editor flag without proper authorization. CVE record
- CVE-2024-3494, 8 May 2024
- 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. CVE record
- CVE-2022-4481, 16 Jan 2023
- The Mesmerize Companion WordPress plugin before 1.6.135 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privilege users such as admins. CVE record
What to do if you run Mesmerize Companion
If you run Mesmerize Companion, open WordPress and check the installed version in Plugins. Compare it with the affected versions in the vulnerability record. If a fixed version is available, take a current backup and update to that version or the latest supported release.
If no fixed version exists, consider disabling and removing the plugin or replacing it with a maintained alternative. After dealing with the affected software, check administrator users, unexpected file changes, redirects, unfamiliar pages and security logs for signs that the site may already have been altered.
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