Improper Image Attribute Escaping in Firelight Lightbox Plugin for WordPress
CVE-2026-118438

Currently unrated

Key Information:

Vendor

WordPress
Status
Firelight Lightbox
Vendor
CVE Published:
31 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-118438?

The Firelight Lightbox plugin for WordPress prior to version 2.3.24 exhibits a vulnerability where it inadequately escapes image attribute values before rendering them in the browser. This flaw could enable users with contributor-level access and above to inject malicious web scripts. These scripts have the potential to execute when another user views the affected content, posing a significant security risk to the website's integrity and user safety.

Affected Version(s)

Firelight Lightbox 0 < 2.3.24

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-2026-118438 - Proof of Concept

References

https://wpscan.com/vulnerability/ddf2cb3f-3aa6-4994-8682-...
exploitvdb-entrytechnical-description

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Pierre Rudloff
WPScan
.