Description
Multiple Pages Generator by Themeisle before 4.2.5 contains a stored cross-site scripting vulnerability that allows Contributor-level users to inject script via the [mpg] and [mpg_match] shortcode base-url attribute. Attackers can store entity-encoded payloads that pass kses but are decoded by html_entity_decode() and rendered unescaped through {{mpg_url}}, executing script in administrators' browsers.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Themeisle | Multiple Pages Generator by Themeisle | < 4.2.5 | 4.2.5 |
References
- WordPress Plugin Changeset 3742674 patch
- https://plugins.svn.wordpress.org/multiple-pages-generator-by-porthas/tags/4.2.4/controllers/display/loop/Core.php technical-description
- https://plugins.svn.wordpress.org/multiple-pages-generator-by-porthas/tags/4.2.4/controllers/display/Base_Display.php technical-description
- https://plugins.svn.wordpress.org/multiple-pages-generator-by-porthas/tags/4.2.4/models/CoreModel.php technical-description
- WordPress Plugin Page product
- VulnCheck Advisory: Multiple Pages Generator by Themeisle before 4.2.5 Stored XSS via Shortcode base-url third-party-advisory