CVE-2023-27890 Cross-site scripting in n/a
An attacker can inject malicious scripts via user profile fields that execute when an admin exports DSGVO data in the unsupported MyBB Export User plugin.
- 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-2023-27890?
CVE-2023-27890 is a medium-severity cross-site scripting vulnerability in n/a, published on 14 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 Export User plugin through 2.0 for MyBB allows XSS during the process of an admin generating DSGVO data for a user, via the Custom User Title, Location, or Bio field. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.
Weakness: CWE-79
Which versions are affected by CVE-2023-27890?
It affects 1 product.
Products include Export User Project Export User.
How do I fix CVE-2023-27890?
No fix has been published for CVE-2023-27890 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-2023-27890 being exploited?
There is no known exploitation of CVE-2023-27890 in the wild and no public exploit code.
Sources
Also known as GHSA-7mqr-6r89-272v.