CVE-2026-15780

The WP Statistics – Simple, privacy-friendly Google Analytics alternative plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'utm_campaign' parameter in all versions up to, and including, 14.16.8 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. The payload can be planted without authentication via the public /wp-statistics/v2/hit REST endpoint, because the required signature is exposed on the public homepage and a base64-encoded page_uri POST parameter overrides the previously sanitized REQUEST_URI, allowing the malicious utm_campaign value to bypass sanitization and be stored in the database.
References
Link Resource
https://github.com/wp-statistics/wp-statistics/commit/6ab74427778b89c9e88471e9dd7407d9055a9b34
https://plugins.trac.wordpress.org/browser/wp-statistics/tags/14.16.7/assets/dev/javascript/helper.js#L267
https://plugins.trac.wordpress.org/browser/wp-statistics/tags/14.16.7/includes/api/v2/class-wp-statistics-api-hit.php#L78
https://plugins.trac.wordpress.org/browser/wp-statistics/tags/14.16.7/includes/class-wp-statistics-helper.php#L1462
https://plugins.trac.wordpress.org/browser/wp-statistics/tags/14.16.7/includes/class-wp-statistics-hits.php#L102
https://plugins.trac.wordpress.org/browser/wp-statistics/tags/14.16.7/views/components/tables/referred-visitors.php#L79
https://plugins.trac.wordpress.org/browser/wp-statistics/tags/14.16.7/views/components/tables/visitors.php#L94
https://plugins.trac.wordpress.org/browser/wp-statistics/tags/14.16.8/assets/dev/javascript/helper.js#L267
https://plugins.trac.wordpress.org/browser/wp-statistics/tags/14.16.8/includes/api/v2/class-wp-statistics-api-hit.php#L78
https://plugins.trac.wordpress.org/browser/wp-statistics/tags/14.16.8/includes/class-wp-statistics-helper.php#L1462
https://plugins.trac.wordpress.org/browser/wp-statistics/tags/14.16.8/includes/class-wp-statistics-hits.php#L102
https://plugins.trac.wordpress.org/browser/wp-statistics/tags/14.16.8/views/components/tables/referred-visitors.php#L79
https://plugins.trac.wordpress.org/browser/wp-statistics/tags/14.16.8/views/components/tables/visitors.php#L94
https://www.wordfence.com/threat-intel/vulnerabilities/id/b5baecfe-ce0b-4cec-8462-bfd7eadd41e9?source=cve
Configurations

No configuration.

History

No history.

Information

Published : 2026-08-19 07:16

Updated : 2026-08-20 12:48


NVD link : CVE-2026-15780

Mitre link : CVE-2026-15780

CVE.ORG link : CVE-2026-15780


JSON object : View

Products Affected

No product.

CWE
CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')