Cross Site Scripting Vulnerability in Photonic Gallery & Lightbox by Photonic
CVE-2026-66434

6.5MEDIUM

Key Information:

Vendor

WordPress
Status
Photonic Gallery & Lightbox For Flickr, Smugmug & Others
Vendor
CVE Published:
27 July 2026

What is CVE-2026-66434?

A Cross Site Scripting (XSS) vulnerability exists in the Photonic Gallery & Lightbox plugin for platforms like Flickr and SmugMug, affecting versions up to 3.33. This security flaw could allow attackers to inject malicious scripts into webpages viewed by other users, potentially compromising their data and account security. It is crucial for users to update to the latest version to mitigate this risk.

Affected Version(s)

Photonic Gallery & Lightbox for Flickr, SmugMug & Others <= 3.33

References

https://patchstack.com/database/wordpress/plugin/photonic...
vdb-entry

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Ananda Dhakal (Patchstack) | Patchstack Bug Bounty Program
.