CVE-2026-4379
MEDIUM
6.4
CVSS 3.1
Description
The LightPress Lightbox plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `group` attribute in the `[gallery]` shortcode in all versions up to, and including, 2.3.4. This is due to the plugin modifying gallery shortcode output to include the `group` attribute value without proper escaping. 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.
Affected WordPress components
-
LightPress Lightbox Plugin · wp-jquery-lightboxUp to and including 2.3.4View on WordPress.org
A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.
Affected products and versions
- firelightwp LightPress Lightbox — Up to and including 2.3.4
References
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/wp-jquery-lightbox/tags/2.3.4/lightboxes/wp-jquery-lightbox/class-wp-jquery-lightbox.php#L376
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/wp-jquery-lightbox/tags/2.3.4/lightboxes/wp-jquery-lightbox/class-wp-jquery-lightbox.php#L395
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?old_path=/wp-jquery-lightbox/tags/2.3.4&new_path=/wp-jquery-lightbox/tags/2.3.5
- www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/2bed4818-70c5-40b7-8d8d-f43f3baa0f3d?source=cve
- nvd.nist.gov Official NVD record