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.
Fix
Patch, vendor advisory and mitigation references on NVD 1
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 5.1 · themeisleNVD modified 2026-10-29 13:08
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 6
- https://plugins.trac.wordpress.org/changeset/3742674/multiple-pages-generator-by-porthas 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
- https://wordpress.org/plugins/multiple-pages-generator-by-porthas/ product
- https://www.vulncheck.com/advisories/multiple-pages-generator-by-themeisle-before-4.2.5-stored-xss-via-shortcode-base-url third-party-advisory