CVE-2019-11869 Cross-site scripting in n/a
An unauthenticated attacker can inject malicious scripts into the Yuzo Related Posts plugin settings due to flawed admin verification logic.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2019-11869?
CVE-2019-11869 is a medium-severity cross-site scripting vulnerability in n/a, published on 9 May 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2019-11869?
It affects 1 product.
Products include Yuzopro Yuzo.
How do I fix CVE-2019-11869?
No fix has been published for CVE-2019-11869 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2019-11869 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-11869 exists.
Public exploit code: 1 Nuclei template and 1 proofs of concept on GitHub.
Sources
Also known as GHSA-j5p6-8vxr-w5gp.