CVE-2024-13586: Masy Gallery <= 1.7 - Authenticated (Contributor+) Stored Cross-Site Scripting

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-01-25 · updated 2026-06-17
Weakness: CWE-79

Description

The Masy Gallery plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'justified-gallery' shortcode in all versions up to, and including, 1.7 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

imdr Masy Gallery: through 1.7

References

https://plugins.trac.wordpress.org/browser/masy-gallery/trunk/inc/masygal-justified-shortcode.php#L33
https://www.wordfence.com/threat-intel/vulnerabilities/id/b865df96-335c-4856-a5e5-e728fb0645d3?source=cve

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