CVE-2021-24316 Mediumish <= 1.0.47 - Unauthenticated Reflected Cross-Site Scripting (XSS)
An unauthenticated attacker can execute arbitrary scripts in a victim's browser via the search parameter in the Mediumish WordPress theme.
- 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-2021-24316?
CVE-2021-24316 is a medium-severity cross-site scripting vulnerability in WowThemes Mediumish, published on 1 Jun 2021. 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 search feature of the Mediumish WordPress theme through 1.0.47 does not properly sanitise it's 's' GET parameter before output it back the page, leading to the Cross-SIte Scripting issue.
Weakness: CWE-79
Which versions are affected by CVE-2021-24316?
It affects 1 product.
Products include Wowthemes Mediumish.
How do I fix CVE-2021-24316?
No fix has been published for CVE-2021-24316 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-2021-24316 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-24316 exists.
Public exploit code: 1 Nuclei template.
Sources
Also known as GHSA-9gxp-8w92-6cxw.