Vulnerability in Photo Gallery – Responsive Image Galleries by Supsystic — CVE-2026-102399

What to do now

Update Photo Gallery – Responsive Image Galleries by Supsystic to 1.21.1 or later.

Affected versions

• Everything up to and including 1.21.0

The Photo Gallery – Responsive Image Galleries by Supsystic plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.21.0. This is due to missing or incorrect nonce validation on a function. This makes it possible for unauthenticated attackers to perform an unauthorized action via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

This description is reproduced verbatim from the public vulnerability record.

• https://www.wordfence.com/threat-intel/vulnerabilities/id/c3ec1155-a055-4eb2-8c6a-cae591ad6f87?source=api-prod

Part of this record comes from Wordfence Intelligence. Original: https://www.wordfence.com/threat-intel/vulnerabilities/id/c3ec1155-a055-4eb2-8c6a-cae591ad6f87
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