Vulnerabilities / Responsive Lightbox & Gallery / WPSEC-2026-0439
Responsive Lightbox & Gallery <= 2.7.9 - Authenticated (Contributor+) Stored Cross-Site Scripting via GLightbox Slide Options
Medium 6.4
CWE-79Fixed in 2.7.10
- ID
- WPSEC-2026-0439
- Plugin
- Responsive Lightbox & Gallery (responsive-lightbox)
- Affected
- from 2.6.0 before 2.7.10
- Remediation
- Update to 2.7.10 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 High · Affected versions Medium among sites WPSec scans, 2026-10-06
- Attack surface
- Responsive Lightbox & Gallery on WPSec AttackSurface
- Fix released
- Published
Description
The Responsive Lightbox & Gallery plugin for WordPress is vulnerable to Stored Cross-Site Scripting via GLightbox slide options (title, description, inline content, URL and video settings) in versions 2.6.0 up to, and including, 2.7.9. This is due to the slide options read from a lightboxed link not being sanitized before GLightbox renders them. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that execute when a user opens the affected lightbox.
References
- https://wpsec.com/vuln/WPSEC-2026-0439/
- https://plugins.svn.wordpress.org/responsive-lightbox/tags/2.7.10/
- https://wordpress.org/plugins/responsive-lightbox/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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