Stored Cross-Site Scripting Vulnerability in Robo Gallery Plugin for WordPress
CVE-2026-4300

6.4MEDIUM

Key Information:

Vendor

WordPress
Status
Robo Gallery – Photo & Image Slider
Vendor
CVE Published:
8 April 2026

What is CVE-2026-4300?

The Robo Gallery plugin for WordPress allows authenticated users with Author-level access to inject arbitrary JavaScript into web pages. This is due to a stored cross-site scripting vulnerability that arises from the 'Loading Label' setting, which does not effectively sanitize specific markers used in injecting JavaScript. When the gallery options are displayed, user input containing these markers can pass through sanitization and execute as JavaScript in the browser, exposing sites to potential security risks. Affected versions are up to and including 5.1.3.

Affected Version(s)

Robo Gallery – Photo & Image Slider 0 <= 5.1.3

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/robo-gallery/t...
https://plugins.trac.wordpress.org/browser/robo-gallery/t...

CVSS V3.1

Score:
6.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Athiwat Tiprasaharn
.