6.4
Medium
CVE-2026-6454 The Firelight Lightbox plugin for WordPress is vulnerable to Stored DOM Cross-Site Scripting in versions up to and…
Description
The Firelight Lightbox plugin for WordPress is vulnerable to Stored DOM Cross-Site Scripting in versions up to and including 2.3.20. This is due to insufficient sanitization of the href attribute value within the FancyBox V2 PDF beforeLoad JavaScript callback generated in inc/fancybox-2.php, where this.href is string-concatenated directly into an HTML string without escaping, allowing a stored href containing entity-encoded double-quotes to break out of the data attribute and inject arbitrary event handlers into the DOM. This makes it possible for authenticated attackers with contributor-level access and above to inject arbitrary web scripts into pages that execute whenever a user clicks the malicious PDF link.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Firelight Lightbox 2.3 | earliest → 2.3.20 | No fix stated |
Other CVEs of Firelight Lightbox
The 4 CVEs of Firelight Lightbox →
CVE-2025-52707
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Firelight…
6.5
Medium
CVE-2024-5020
Multiple plugins for WordPress are vulnerable to Stored Cross-Site Scripting via the plugin's bundled FancyBox…
6.4
Medium
CVE-2024-50460
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Firelight…
5.9
Medium