CVE-2019-11869

Impact

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.

Affected products

Weakness classification

References

• NVD record
• CVE.org record
• https://wpvulndb.com/vulnerabilities/9254
• https://www.pluginvulnerabilities.com/2019/03/30/wordpress-plugin-team-paints-target-on-exploitable-settings-change-vulnerability-that-permits-persistent-xss-in-related-posts/
• https://www.wordfence.com/blog/2019/04/yuzo-related-posts-zero-day-vulnerability-exploited-in-the-wild/
• https://wpvulndb.com/vulnerabilities/9254
• https://www.pluginvulnerabilities.com/2019/03/30/wordpress-plugin-team-paints-target-on-exploitable-settings-change-vulnerability-that-permits-persistent-xss-in-related-posts/
• https://www.wordfence.com/blog/2019/04/yuzo-related-posts-zero-day-vulnerability-exploited-in-the-wild/