CVE-2023-37300 Missing authorization in n/a
Attackers can view hidden user information via the CheckUserLog API due to incorrect access control in the MediaWiki CheckUser extension.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-37300?
CVE-2023-37300 is a medium-severity missing authorization vulnerability in Mediawiki Mediawiki, published on 30 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in the CheckUserLog API in the CheckUser extension for MediaWiki through 1.39.3. There is incorrect access control for visibility of hidden users.
Weakness: CWE-863
Which versions are affected by CVE-2023-37300?
1 open source package ship an affected version, including mediawiki. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
mediawiki Bitnami | All versions | 1.39.4 |
Products include Mediawiki Mediawiki.
How do I fix CVE-2023-37300?
Upgrade mediawiki to 1.39.4 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2023-37300 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-37300 exists.
Other vulnerabilities in Mediawiki Mediawiki
Sources
Also known as BIT-mediawiki-2023-37300, GHSA-7jff-vjgp-2fjv, UBUNTU-CVE-2023-37300.