CVE-2024-3559 Custom Field Suite <= 2.6.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via cfs[post_content]
Authenticated attackers with contributor access can inject arbitrary scripts via the post content parameter, leading to stored XSS execution for other users.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-3559?
CVE-2024-3559 is a medium-severity cross-site scripting vulnerability in mgibbs189 Custom Field Suite, published on 12 Jun 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Custom Field Suite plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the the 'cfs[post_content]' parameter versions up to, and including, 2.6.7 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Weakness: CWE-79
Which versions are affected by CVE-2024-3559?
It affects 1 product.
Products include Custom Field Suite Project Custom Field Suite.
How do I fix CVE-2024-3559?
No fix has been published for CVE-2024-3559 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-2024-3559 being exploited?
There is no known exploitation of CVE-2024-3559 in the wild and no public exploit code.
Other vulnerabilities in mgibbs189 Custom Field Suite
- CVE-2024-3561 Custom Field Suite <= 2.6.7 - Authenticated (Contributor+) SQL Injection via Term Custom Field
- CVE-2024-3562 Custom Field Suite <= 2.6.7 - Authenticated (Contributor+) PHP Code Injection via Loop Custom Field
- CVE-2024-3558 Custom Field Suite <= 2.6.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via cfs[post_title]
- CVE-2023-32515 WordPress Custom Field Suite Plugin <= 2.6.2.1 is vulnerable to Cross Site Scripting (XSS)
- CVE-2019-11871 Cross-site scripting in n/a
Sources
Also known as GHSA-3fc6-rfv9-rx3p.