How severe is CVE-2024-23172?

CVE-2024-23172 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2024-23172 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-23172?

CVE-2024-23172 affects Mediawiki. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-23172?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-23172 have an EU (EUVD) identifier?

Yes. CVE-2024-23172 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-20691.

When was CVE-2024-23172 published?

CVE-2024-23172 was published on 2024-01-12 and last updated on 2026-06-17.

CVE-2024-23172

CVE-2024-23172 is a medium-severity vulnerability in Mediawiki with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
EPSS exploit prediction: 0% (38th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-20691
Weakness: CWE-79
Affected product: Mediawiki
Published: 2024-01-12
Last modified: 2026-06-17

Description

An issue was discovered in the CheckUser extension in MediaWiki before 1.35.14, 1.36.x through 1.39.x before 1.39.6, and 1.40.x before 1.40.2. XSS can occur via message definitions. e.g., in SpecialCheckUserLog.

Frequently asked questions

What is CVE-2024-23172?: An issue was discovered in the CheckUser extension in MediaWiki before 1.35.14, 1.36.x through 1.39.x before 1.39.6, and 1.40.x before 1.40.2. XSS can occur via message definitions. e.g., in SpecialCheckUserLog.
How severe is CVE-2024-23172?: CVE-2024-23172 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2024-23172 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-23172?: CVE-2024-23172 affects Mediawiki. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-23172?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-23172 have an EU (EUVD) identifier?: Yes. CVE-2024-23172 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-20691.
When was CVE-2024-23172 published?: CVE-2024-23172 was published on 2024-01-12 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*

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