CVE-2023-0374 W4 Post List < 2.4.6 - Contributor+ Stored XSS
Contributors can inject malicious scripts via block options in the W4 Post List plugin, leading to stored XSS attacks on embedded pages.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2023-0374?
CVE-2023-0374 is a medium-severity cross-site scripting vulnerability in Unknown W4 Post List, published on 17 Apr 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
The W4 Post List WordPress plugin before 2.4.6 does not validate and escape some of its block options before outputting them back in a page/post where the block is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.
Weakness: CWE-79
Which versions are affected by CVE-2023-0374?
It affects 1 product.
Products include W4 Post List Project W4 Post List.
How do I fix CVE-2023-0374?
No fix has been published for CVE-2023-0374 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-2023-0374 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-0374 exists.
Other vulnerabilities in Unknown W4 Post List
Sources
Also known as GHSA-r6hq-mwrm-ppjg.