Stored Cross-Site Scripting Vulnerability in Lightbox with PhotoSwipe by WordPress
CVE-2026-124649

Currently unrated

Key Information:

Vendor

WordPress
Status
Lightbox With Photoswipe
Vendor
CVE Published:
14 November 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-124649?

The Lightbox with PhotoSwipe plugin for WordPress prior to version 5.19.0 fails to adequately sanitize link titles and other caption sources before rendering them as HTML in the image lightbox. This oversight permits unauthenticated users to exploit the vulnerability and execute stored cross-site scripting attacks through comments, potentially compromising site security and user data.

Affected Version(s)

Lightbox with PhotoSwipe 0 < 5.19.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-124649 - Proof of Concept

References

https://wpscan.com/vulnerability/c2c4ba65-7e51-4ec1-b7a9-...
exploitvdb-entrytechnical-description

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Nguyen Huy Tien
WPScan
.