CVE-2023-37303

Public Exploit

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.19%
Vendor Advisory wikimedia.org Vendor Advisory wikimedia.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://phabricator.wikimedia.org/T338276 patch exploit vendor advisory issue tracking
https://gerrit.wikimedia.org/r/q/I10a9273c542576b3f7bb38de68dcd2aa41cfb1b0 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-37303?
CVE-2023-37303 has been scored as a critical severity vulnerability.
How to fix CVE-2023-37303?
To fix CVE-2023-37303, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-37303 being actively exploited in the wild?
It is possible that CVE-2023-37303 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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