What the vulnerability does
01Description
The Envira Gallery plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the gallery 'description' configuration field in all versions up to, and including, 1.12.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses a page displaying the gallery with a description enabled.
Explanation of Vulnerability in Simple Terms
02Summary
Envira Gallery versions up to 1.12.4 contain a cross-site scripting vulnerability that allows authenticated users to inject malicious scripts. The vulnerability affects the gallery's handling of user input and can impact other site visitors. Site administrators should update to a version newer than 1.12.4 to remediate this issue.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that execute in other users' browsers when they view gallery content.
Potential impact on your site
04Site Impact
Authenticated users can inject scripts affecting other visitors; may compromise user sessions or steal data.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege account (e.g., contributor or subscriber) on the site.
Key dates
06Disclosure timeline
August 28, 2026
CVE published
