# CVE-2026-110776: MDTF <= 1.4.1 - Unauthenticated Stored Cross-Site Scripting via 'vars' Parameter

Status: published. Published: 2026-11-06. Updated: 2026-11-06.

The MDTF – Meta Data and Taxonomies Filter plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'vars' parameter in all versions up to, and including, 1.4.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This requires that a published page or post on the target site contains the [meta_data_filter_results] shortcode, which is the primary output feature of the plugin.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- realmag777 / MDTF – Meta Data and Taxonomies Filter: ≥ 0; ≤ 1.4.1 (affected, semver). Source: CNA: Wordfence

## Severity and prioritization

- CVSS 3.1: 7.2 (high); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N; source: CNA: Wordfence

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-79

## Exploit evidence

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/78502e58-c447-48d3-a627-ec5eeb330928?source=cve (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/wp-meta-data-filter-and-taxonomy-filter/trunk/views/shortcode/meta_data_filter.php#L177 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/wp-meta-data-filter-and-taxonomy-filter/trunk/classes/page.php#L147 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/wp-meta-data-filter-and-taxonomy-filter/trunk/classes/page.php#L242 (CNA: Wordfence)

- https://plugins.svn.wordpress.org/wp-meta-data-filter-and-taxonomy-filter/trunk/ (CNA: Wordfence)

## Provenance

- CNA: Wordfence: https://www.cve.org/CVERecord?id=CVE-2026-110776; retrieved 2026-11-06; source updated 2026-11-06

Revision: 8c67ca27ed16853c0b92f4d3ed1a847ace6f00635d10ca1ce186e0bc4298b6cc

Canonical: https://y2.dev/cve/CVE-2026-110776

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