Is CVE-2023-37252 being exploited?

No public exploit is currently tracked.

How severe is CVE-2023-37252?

CVE-2023-37252 has a CVSS v3 severity of LOW (3.1).

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Description

An issue was discovered in the CheckUser extension for MediaWiki through 1.39.3. Special:CheckUserLog shows usernames that have been hidden.