CVE-2023-0276 Weaver Xtreme Theme Support < 6.2.7 - Contributor+ Stored XSS
Contributors can inject malicious scripts via unescaped shortcode attributes, leading to stored XSS attacks on WordPress sites.
- 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-2023-0276?
CVE-2023-0276 is a medium-severity cross-site scripting vulnerability in Unknown Weaver Xtreme Theme Support, published on 24 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 Weaver Xtreme Theme Support WordPress plugin before 6.2.7 does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.
Which versions are affected by CVE-2023-0276?
It affects 1 product.
Products include Weavertheme Weaver Xtreme Theme Support.
How do I fix CVE-2023-0276?
No fix has been published for CVE-2023-0276 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-2023-0276 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-0276 exists.
Other vulnerabilities in Unknown Weaver Xtreme Theme Support
- CVE-2023-4971 Weaver Xtreme Theme Support < 6.3.1 - Admin+ PHP Object Injection
- CVE-2024-4939 Weaver Xtreme Theme Support <= 6.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via div Shortcode
- CVE-2023-6990 Weaver Xtreme <= 6.3.0 - Authenticated (Contributor+) Stored Cross-Site Scripting
Sources
Also known as GHSA-2237-qj4m-4cpq.