CVE-2026-6454
MEDIUM
6,4
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: changed
Confidentiality: low
Integrity: low
Availability: none
Description
AI Translation Available
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.
79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
StableCommon Consequences
Security Scopes Affected:
Access Control
Confidentiality
Integrity
Availability
Potential Impacts:
Bypass Protection Mechanism
Read Application Data
Execute Unauthorized Code Or Commands
Applicable Platforms
Technologies:
AI/ML, Web Based, Web Server
https://plugins.trac.wordpress.org/browser/easy-fancybox/tags/2.3.18/fancybox/2…
https://plugins.trac.wordpress.org/browser/easy-fancybox/tags/2.3.18/fancybox/2…
https://plugins.trac.wordpress.org/browser/easy-fancybox/tags/2.3.18/inc/fancyb…
https://plugins.trac.wordpress.org/browser/easy-fancybox/trunk/fancybox/2.2.0/j…
https://plugins.trac.wordpress.org/browser/easy-fancybox/trunk/fancybox/2.2.0/j…
https://plugins.trac.wordpress.org/browser/easy-fancybox/trunk/inc/fancybox-2.p…
https://plugins.trac.wordpress.org/changeset?reponame=&old=3610643%40easy-fancy…
https://www.wordfence.com/threat-intel/vulnerabilities/id/8396c124-9c72-4801-89…