Is CVE-2023-37253 being exploited?

No public exploit is currently tracked.

How severe is CVE-2023-37253?

CVE-2023-37253 has a CVSS v3 severity of LOW (3.1).

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CVE-2023-37253

Description

An issue was discovered in the ProofreadPage extension for MediaWiki through 1.39.3. It leaks information about a suppressed user via the API and config variables.