CVE-2026-121976 · Package
NO FIX YET
The Modula plugin for WordPress up to and including 3.0.17 fails to sanitize the per-image link field, so a javascript: URL can be saved into a gallery. When a visitor clicks the gallery tile on the injected page, the script runs in their browser.
first public Nov 7, 2026 · 1 source
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Sites running the Modula gallery plugin at version 3.0.17 or earlier where Author-level or higher accounts can edit gallery content. Sites without the plugin, or without untrusted authors, have less exposure. The sources do not describe the fixed version.
Not affected if no-untrusted-authors, plugin-not-installed
Who cares modula, self-hosted, wordpress
3.0.17 and below are in the stated range.javascript:.No fix yet, per the sources.
The Modula plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'items' parameter in versions up to, and including, 3.0.17 This is due to insufficient input sanitization of the per-image 'link' field in the save_merged_items() REST handler and Images\Adapter::normalize_item_row(), which preserves unknown keys verbatim, combined with output escaping in Modula_Helper::generate_attributes() that applies only esc_attr() to the resulting anchor href and does not strip the 'javascript:' URL scheme. 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 an injected page and clicks the gallery tile.
This page as .md · .json · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
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