Responsive Lightbox & Gallery: Cross-site scripting
Responsive Lightbox & Gallery is affected by cross-site scripting. The vulnerable path is reachable without authentication. Injected script can execute in the affected site's origin when the vulnerable output is viewed.
- Component
- Responsive Lightbox & Gallery
- Plugin slug
responsive-lightbox-gallery- Affected
- See vendor advisory
- Safe version
- See mitigation notes
- Published
- Feb 24, 2026
- Weakness
- Not assigned
This CVE was published Feb 24, 2026 and is one of 2 known issues for this plugin.
Update, patch or deactivate.
Update Responsive Lightbox & Gallery to a release outside the affected range, or disable and remove it until a fixed version is available.
No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The Responsive Lightbox & Gallery WordPress plugin before 2.6.1 is vulnerable to an Unauthenticated Stored-XSS attack due to flawed regex replacement rules that can be abused by posting a comment with a malicious link when lightbox for comments are enabled and then approved.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H