Vulnerabilities / Firelight Lightbox / WPSEC-2026-0483
Firelight Lightbox <= 2.3.23 - Authenticated (Contributor+) Stored Cross-Site Scripting via Image Block src Attribute
Medium 6.4
CWE-79Fixed in 2.3.24
- ID
- WPSEC-2026-0483
- Plugin
- Firelight Lightbox (easy-fancybox)
- Affected
- from 2.1.7 before 2.3.24
- Remediation
- Update to 2.3.24 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 High among sites WPSec scans, 2026-10-06
- Attack surface
- Firelight Lightbox on WPSec AttackSurface
- Fix released
- Published
Description
The Firelight Lightbox plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the src attribute of unlinked image blocks in all versions up to, and including, 2.3.23 due to the plugin's inline JavaScript concatenating the image source URL into an HTML anchor string without escaping when wrapping unlinked images for the lightbox. 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.
References
- https://wpsec.com/vuln/WPSEC-2026-0483/
- https://plugins.svn.wordpress.org/easy-fancybox/tags/2.3.24/
- https://wordpress.org/plugins/easy-fancybox/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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