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CVE-2019-11869

6.1 · MEDIUM

The Yuzo Related Posts plugin 5.12.94 for WordPress has XSS because it mistakenly expects that is_admin() verifies that the request comes from an admin user (it actually only verifies that the requ…

Published May 9, 2019CWE-79EPSS 4.48%

Overview

CVE-2019-11869 is a medium-severity vulnerability. It was published on May 9, 2019 and has a CVSS 3.0 base score of 6.1 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 6.1, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The Yuzo Related Posts plugin 5.12.94 for WordPress has XSS because it mistakenly expects that is_admin() verifies that the request comes from an admin user (it actually only verifies that the request is for an admin page). An unauthenticated attacker can inject a payload into the plugin settings, such as the yuzo_related_post_css_and_style setting.

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

Refwpvulndb.com/vulnerabilities/9254Refwww.pluginvulnerabilities.com/2019/03/30/wordpress-plugin-team-paints-target-on-exploitable-settings-change-vulnerability-that-permits-persistent-xss-in-related-posts/Refwww.wordfence.com/blog/2019/04/yuzo-related-posts-zero-day-vulnerability-exploited-in-the-wild/Refwpvulndb.com/vulnerabilities/9254Refwww.pluginvulnerabilities.com/2019/03/30/wordpress-plugin-team-paints-target-on-exploitable-settings-change-vulnerability-that-permits-persistent-xss-in-related-posts/Refwww.wordfence.com/blog/2019/04/yuzo-related-posts-zero-day-vulnerability-exploited-in-the-wild/

How CyberStrike helps

Frequently asked questions

What is CVE-2019-11869?

CVE-2019-11869 is a medium-severity vulnerability. It was published on May 9, 2019 and has a CVSS 3.0 base score of 6.1 (MEDIUM).

How severe is CVE-2019-11869?

This vulnerability has a CVSS 3.0 base score of 6.1, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2019-11869?

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-2019-11869?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2019-11869 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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