Live › vulnerability › CVE-2026-116563
Versions up to and including 4.5.4 of the NextGEN Gallery WordPress plugin fail to sanitize the 'comment' parameter, enabling stored DOM-based cross-site scripting. An unauthenticated attacker can plant a script that runs in the browser of visitors who open the affected page, once an administrator approves the comment.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-31 06:33 UTC. All times on this page are UTC.
Sites running NextGEN Gallery up to and including 4.5.4 with Shutter or Shutter Reloaded set as the active lightbox. The attacker's script must also pass the standard comment moderation step before it is rendered to other visitors, so sites that moderate all comments carry lower risk. Sites without the plugin or with a different lightbox are not exposed.
No product ranges from the sources yet.
wp plugin get nextgen-gallery --field=version if WP-CLI is available.Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
The Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via the 'comment' parameter in all versions up to, and including, 4.5.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires the site to have Shutter or Shutter Reloaded selected as the active lightbox, and the injected comment must be approved through WordPress's standard moderation workflow before the payload is rendered to other visitors.
This page as .md · .json · in your agent: get_signal("CVE-2026-116563")
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