CVE-2024-4756 WP Backpack <= 2.1 - Admin+ Stored XSS
Admin users can inject malicious scripts via unsanitized settings in WP Backpack, bypassing unfiltered_html restrictions in multisite setups.
- 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-2024-4756?
CVE-2024-4756 is a medium-severity cross-site scripting vulnerability in Unknown WP Backpack, published on 7 Jun 2024. 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 WP Backpack WordPress plugin through 2.1 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)
Weakness: CWE-79
Which versions are affected by CVE-2024-4756?
It affects 1 product.
Products include Wpbackpack Wp Backpack.
How do I fix CVE-2024-4756?
No fix has been published for CVE-2024-4756 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-2024-4756 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-4756 exists.
Sources
Also known as GHSA-2273-x2j3-xp63.