CVE-2026-109989
Themify Popup <= 1.4.7 - Authenticated (Author+) Stored Cross-Site Scripting via 'popup_width_unit' Parameter
themifyme Themify Popup
CVSS
6.4MediumExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.19%Chance of exploitation activity in the next 30 days, higher than 8% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version yet
What fixes it
No source in this snapshot names a fixed version.
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.
Text from CVE List
Affected versions 1
- Themify Popupaffected: all versions through 1.4.7CVE List
References 5
- wordfence.com/threat-intel/vulnerabilities/id/da003985-7fb2-4f5b-bb70-6ec3578ef3e8?source=cveReferencevia CVE List
- plugins.trac.wordpress.org/browser/themify-popup/tags/1.4.7/views/styles.php#L29Referencevia CVE List
- plugins.trac.wordpress.org/browser/themify-popup/tags/1.4.7/includes/themify-metabox/includes/themify-metabox-core.php#L209Referencevia CVE List
- plugins.trac.wordpress.org/browser/themify-popup/tags/1.4.7/includes/themify-metabox/includes/themify-metabox-core.php#L151Referencevia CVE List
- plugins.trac.wordpress.org/changeset?reponame=&old=3749602%40themify-popup&new=3749602%40themify-popupReferencevia CVE List