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CVE-2026-5231

7.2 · HIGH

The WP Statistics plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'utm_source' parameter in all versions up to, and including, 14.16.4.

Published Apr 17, 2026CWE-79EPSS 0.42%

Overview

CVE-2026-5231 is a high-severity vulnerability. It was published on April 17, 2026 and has a CVSS 3.1 base score of 7.2 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.2, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The WP Statistics plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'utm_source' parameter in all versions up to, and including, 14.16.4. This is due to insufficient input sanitization and output escaping. The plugin's referral parser copies the raw utm_source value into the source_name field when a wildcard channel domain matches, and the chart renderer later inserts this value into legend markup via innerHTML without escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in admin pages that will execute whenever an administrator accesses the Referrals Overview or Social Media analytics pages.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refplugins.trac.wordpress.org/browser/wp-statistics/tags/14.16.4/assets/dev/javascript/chart.js#L498Refplugins.trac.wordpress.org/browser/wp-statistics/tags/14.16.4/src/Service/Analytics/Referrals/ReferralsParser.php#L62Refplugins.trac.wordpress.org/browser/wp-statistics/trunk/assets/dev/javascript/chart.js#L498Refplugins.trac.wordpress.org/browser/wp-statistics/trunk/src/Service/Analytics/Referrals/ReferralsParser.php#L62Refplugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3503795%40wp-statistics%2Ftrunk&old=3483860%40wp-statistics%2Ftrunk&sfp_email=&sfph_mail=Refwww.wordfence.com/threat-intel/vulnerabilities/id/9b350b48-05ba-4054-895f-36d7ad71459d?source=cve

How CyberStrike helps

Frequently asked questions

What is CVE-2026-5231?

CVE-2026-5231 is a high-severity vulnerability. It was published on April 17, 2026 and has a CVSS 3.1 base score of 7.2 (HIGH).

How severe is CVE-2026-5231?

This vulnerability has a CVSS 3.1 base score of 7.2, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-5231?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-5231?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-5231 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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