CVE-2026-107758
HighCVSS 7.2Summary
The Colibri Page Builder plugin for WordPress (versions up to and including 1.0.390) is vulnerable to stored cross-site scripting via the 'comment' parameter due to insufficient input sanitization and output escaping. The payload survives storage because the widened comment allow-list permits SVG elements, and execution occurs when colibri.js reads the stored data-target value and passes it to jQuery().
Risk Assessment
An unauthenticated attacker can inject arbitrary web scripts into pages that execute when a user visits the injected page, potentially leading to session theft or other actions in the victim's browser context.
Recommendation
Update the Colibri Page Builder plugin to a version newer than 1.0.390.
Other vulnerabilities in Colibri Page Builder
See all- CVE-2025-11376Medium
The Colibri Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'colibri_loop' shortcode in all versions up to and including 1.0.335 due to insufficient input sanitization and output escaping on user supplied attributes.
- CVE-2025-59593Medium
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Extend Themes Colibri Page Builder colibri-page-builder allows Stored XSS. This issue affects Colibri Page Builder: from n/a through < 1.0.334.
- CVE-2025-9560Medium
The Colibri Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's colibri_newsletter shortcode in all versions up to, and including, 1.0.334 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.
Original NVD description (English source)
The Colibri Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'comment' parameter in all versions up to, and including, 1.0.390 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. The injected payload survives storage because the widened comment allow-list permits SVG elements with arbitrary data-* attributes; execution occurs because colibri.js, enqueued globally on every front-end page, reads the stored data-target value via jQuery.data() — which HTML-entity-decodes it — and passes the resulting string directly into jQuery(), which parses a leading '<' as HTML and fires the embedded event handler.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS