CVE-2026-118165
MediumCVSS 6.8Exploitation Probability (EPSS)
Low risk15th percentile - higher than 15% of all known CVEs
Summary
The Firelight Lightbox plugin for WordPress before 2.3.23 does not escape the URL of links opened in its Classic lightbox before inserting them into the page as HTML. This allows users with a role as low as Contributor to perform stored cross-site scripting attacks against users who click a crafted link.
Risk Assessment
Injected scripts can execute in users' browsers, enabling session theft or other actions in the victim's context.
Recommendation
Update the Firelight Lightbox plugin to version 2.3.23 or later. Until then, restrict contributor roles and monitor links in content.
Other vulnerabilities in Firelight Lightbox
See all- CVE-2026-118438Medium
The Firelight Lightbox WordPress plugin before 2.3.24 does not properly escape image attribute values before processing them in the browser. This could allow users with contributor-level access and above to inject arbitrary web scripts that execute when another user views or previews the affected content.
- CVE-2026-6454Medium
The Firelight Lightbox plugin for WordPress up to version 2.3.20 is vulnerable to Stored DOM Cross-Site Scripting. The href attribute in PDF links is insufficiently sanitized, allowing authenticated attackers with contributor-level access or higher to inject scripts.
Original NVD description (English source)
The Firelight Lightbox WordPress plugin before 2.3.23 does not escape the URL of links it opens in its Classic lightbox before inserting it into the page as HTML, which could allow users with a role as low as Contributor to perform Stored Cross-Site Scripting attacks against users who click a crafted link.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS