CVE-2019-11869

Public Exploit

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.

Category

6.1
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 14.28% Top 10%
Third-Party Advisory wordfence.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://wpvulndb.com/vulnerabilities/9254
https://www.wordfence.com/blog/2019/04/yuzo-related-posts-zero-day-vulnerability-exploited-in-the-wild/ third party advisory exploit
https://www.pluginvulnerabilities.com/2019/03/30/wordpress-plugin-team-paints-target-on-exploitable-settings-change-vulnerability-that-permits-persistent-xss-in-related-posts/

Frequently Asked Questions

What is the severity of CVE-2019-11869?
CVE-2019-11869 has been scored as a medium severity vulnerability.
How to fix CVE-2019-11869?
To fix CVE-2019-11869, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-11869 being actively exploited in the wild?
It is possible that CVE-2019-11869 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~14% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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