# CVE-2026-119054: Multiple Pages Generator by Themeisle before 4.2.5 Stored XSS via Shortcode base-url

Status: published. Published: 2026-10-29. Updated: 2026-11-04.

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.

## Remediation

- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://plugins.trac.wordpress.org/changeset/3742674/multiple-pages-generator-by-porthas

## Affected products and versions

- Themeisle / Multiple Pages Generator by Themeisle: ≥ 0; < 4.2.5 (affected, semver). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 5.1 (medium); CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N; source: CNA: VulnCheck

- CVSS 3.1: 5.4 (medium); CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N; source: CNA: VulnCheck

- CISA KEV: No listing in collected sources

- EPSS: 0.23% as of 2026-11-03; percentile 13.43%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-79

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://plugins.trac.wordpress.org/changeset/3742674/multiple-pages-generator-by-porthas (CNA: VulnCheck; patch)

- https://plugins.svn.wordpress.org/multiple-pages-generator-by-porthas/tags/4.2.4/controllers/display/loop/Core.php (CNA: VulnCheck; technical-description)

- https://plugins.svn.wordpress.org/multiple-pages-generator-by-porthas/tags/4.2.4/controllers/display/Base_Display.php (CNA: VulnCheck; technical-description)

- https://plugins.svn.wordpress.org/multiple-pages-generator-by-porthas/tags/4.2.4/models/CoreModel.php (CNA: VulnCheck; technical-description)

- https://wordpress.org/plugins/multiple-pages-generator-by-porthas/ (CNA: VulnCheck; product)

- https://www.vulncheck.com/advisories/multiple-pages-generator-by-themeisle-before-4.2.5-stored-xss-via-shortcode-base-url (CNA: VulnCheck; third-party-advisory)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-119054; retrieved 2026-11-04; source updated 2026-11-04

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-119054; retrieved 2026-11-04; source updated Not reported

Revision: a5cb41dd5f951df630ba3e9eed2a01084bdec9b962c9e831fee2d3ed5304db1d

Canonical: https://y2.dev/cve/CVE-2026-119054

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