Themify Popup <= 1.4.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via Popup Style Settings
- ID
- WPSEC-2026-1145
- Plugin
- Themify Popup (themify-popup)
- Affected
- all versions before 1.4.8
- Remediation
- Update to 1.4.8 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- Weakness
- CWE-79
- Usage
- Plugin Low · Affected versions Low among sites WPSec scans, 2026-10-16
- Attack surface
- Themify Popup on WPSec AttackSurface
- Fix released
- Published
Description
The Themify Popup plugin for WordPress is vulnerable to Stored Cross-Site Scripting via popup style settings such as the popup width/height unit and overlay color in all versions up to, and including, 1.4.7. This is due to insufficient input sanitization and output escaping: dropdown and color meta values were saved without validation and concatenated directly into an inline <style> block on the frontend. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts that will execute whenever a user accesses a page where the injected popup is displayed.
References
- https://wpsec.com/vuln/WPSEC-2026-1145/
- https://plugins.svn.wordpress.org/themify-popup/tags/1.4.8/
- https://wordpress.org/plugins/themify-popup/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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