CVE-2026-119054
MediumCVSS 5.4Exploitation Probability (EPSS)
Low risk13th percentile - higher than 13% of all known CVEs
Summary
The Multiple Pages Generator plugin (Themeisle) before version 4.2.5 contains a stored XSS vulnerability that allows Contributor-level users to inject script via the base-url attribute of the [mpg] and [mpg_match] shortcodes. Malicious payloads pass kses but are decoded by html_entity_decode() and rendered unescaped through {{mpg_url}}.
Risk Assessment
The script can execute in administrators' browsers, enabling session hijacking or actions performed on their behalf. The risk affects sites with the vulnerable plugin version and Contributor users.
Recommendation
Update the Multiple Pages Generator plugin to version 4.2.5 or later. Review Contributor-created content for malicious shortcodes.
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Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

