CVE-2026-109989
MEDIUM
CVSS 6.4
Published: 2026-10-17
Modified: 2026-10-18
Tenable Plugin
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Threat Intelligence Pending
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Description
The Themify Popup plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'popup_width_unit' parameter in all versions up to, and including, 1.4.7 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Quick Facts
| CVE ID | CVE-2026-109989 |
| CVSS Score | 6.4 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
| Published | 2026-10-17 |
| Exploited | No |
| CISA KEV | No |
| PoC | Not public |
References
- https://plugins.trac.wordpress.org/browser/themify-popup/tag…
- https://plugins.trac.wordpress.org/browser/themify-popup/tag…
- https://plugins.trac.wordpress.org/browser/themify-popup/tag…
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3…
- https://www.wordfence.com/threat-intel/vulnerabilities/id/da…