CVE-2022-3833 Fancier Author Box by ThematoSoup <= 1.4 - Admin+ Stored XSS
High-privilege users can inject malicious scripts via unsanitized settings in the Fancier Author Box 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-2022-3833?
CVE-2022-3833 is a medium-severity cross-site scripting vulnerability in Unknown Fancier Author Box by ThematoSoup, published on 28 Nov 2022. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
The Fancier Author Box by ThematoSoup WordPress plugin through 1.4 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).
Which versions are affected by CVE-2022-3833?
It affects 1 product.
Products include Thematosoup Fancier Author Box.
How do I fix CVE-2022-3833?
No fix has been published for CVE-2022-3833 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-2022-3833 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-3833 exists.
Sources
Also known as GHSA-3wfp-9jx5-5xmc.