CVE-2019-11869

EPSS 5.3%◆ VulnCheck KEV

Vexday Risk Score

40Attention

SSVC decision (CISA)

Act

Exploitation + impact → act immediately

Exploit maturity

Functional exploit

Automatable exploit available (Nuclei/Metasploit).

CVSS —EPSS 5.3%KEV nãoPoC —Nuclei simMetasploit —Patch —

Lifecycle

09 May 2019Published on NVD

Recommendation: Patch as soon as possible — active exploitation confirmed.

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

n/a · n/a

References

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/