CVE-2024-3920 Flattr <= 1.2.2 - Admin+ Stored XSS
Admin users can inject malicious scripts via unsanitized settings in the Flattr WordPress plugin, affecting multisite environments.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2024-3920?
CVE-2024-3920 is a low-severity cross-site scripting vulnerability in Unknown Flattr, published on 23 May 2024. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
The Flattr WordPress plugin through 1.2.2 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-2024-3920?
It affects 1 product.
Products include Flattr Flattr.
How do I fix CVE-2024-3920?
No fix has been published for CVE-2024-3920 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-2024-3920 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-3920 exists.
Sources
Also known as GHSA-jj5x-5vg3-9m7f.