CVE-2024-40598

MEDIUMNVD 4.34.3—

4.3

An issue was discovered in the CheckUser extension for MediaWiki through 1.42.1. The API can expose suppressed information for log events. (The log_deleted attribute is not applied to entries.)

CVSS v3: 4.3
EG Score: 4.3(medium)
EPSS: 34.5%
KEV: Not listed

Published

July 7, 2024

Last Modified

March 25, 2025

References (2)

cve@mitrehttps://phabricator.wikimedia.org/T326867
af854a3a-2127-422b-91ae-364da2661108https://phabricator.wikimedia.org/T326867

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-532Insertion of Sensitive Information into Log File

Data Freshness Timeline

(refreshed 11× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-04 13:11 UTCepss_batch
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2026-06-02 20:12 UTCepss_batch
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2026-05-29 13:43 UTCepss_batch
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Frequently asked(5)

What is CVE-2024-40598?

CVE-2024-40598 is a medium vulnerability published on July 7, 2024. An issue was discovered in the CheckUser extension for MediaWiki through 1.42.1. The API can expose suppressed information for log events. (The log_deleted attribute is not applied to entries.)

When was CVE-2024-40598 disclosed?

CVE-2024-40598 was first published in the National Vulnerability Database on July 7, 2024, with the most recent update on March 25, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2024-40598 actively exploited?

CVE-2024-40598 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 34.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2024-40598?

CVE-2024-40598 has a CVSS v3 base score of 4.3 (NVD).

How do I remediate CVE-2024-40598?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-40598, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2024-40598

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2024-40598?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (2)

Frequently asked(5)

Related CVEs(same CWE)