CVE-2026-12477
Gravity Booster <= 5.26 - Authenticated (Editor+) Stored Cross-Site Scripting via 'stylerSettings' Parameter
CVSS Score
4.4
EPSS Score
0.0%
EPSS Percentile
0th
The Gravity Booster – Styles & Layouts for Gravity Forms plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 5.26 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with editor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
| CWE | CWE-79 |
| Vendor | wpmonks |
| Product | gravity booster – styles & layouts for gravity forms |
| Published | Aug 16, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
wpmonks / Gravity Booster – Styles & Layouts for Gravity Forms
0 ≤ 5.26
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/413e5515-6cc9-4fa9-908e-2dc68778f5cb?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/styles-and-layouts-for-gravity-forms/tags/5.26/display/class-styles.php#L76 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/styles-and-layouts-for-gravity-forms/tags/5.26/display/class-styles.php#L147 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/styles-and-layouts-for-gravity-forms/tags/5.26/display/class-styles.php#L148 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/styles-and-layouts-for-gravity-forms/tags/5.26/includes/admin/fetch/stla-admin-fetch-content-area.php#L290 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset?reponame=&old=3637650%40styles-and-layouts-for-gravity-forms&new=3637650%40styles-and-layouts-for-gravity-forms
Credits
wandoo