CVE-2023-37303
9.8
CRITICAL
CVSS 3.1
EPSS 0.24%
Description
An issue was discovered in the CheckUser extension for MediaWiki through 1.39.3. In certain situations, an attempt to block a user fails after a temporary browser hang and a DBQueryDisconnectedError error message.
How to fix CVE-2023-37303
To remediate CVE-2023-37303, upgrade the affected package to a fixed version below.
- Bitnami/mediawiki—upgrade to 1.39.4 or later
Is CVE-2023-37303 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 1.39.4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |