How severe is CVE-2015-2940?

CVE-2015-2940 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2015-2940 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-2940?

CVE-2015-2940 affects Mediawiki Checkuser. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-2940?

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

When was CVE-2015-2940 published?

CVE-2015-2940 was published on 2015-04-13 and last updated on 2026-06-17.

CVE-2015-2940

CVE-2015-2940 is a medium-severity vulnerability in Mediawiki Checkuser with a CVSS 2.0 base score of 6.8. 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-352.

Key facts

Severity: Medium (CVSS 2.0 base score 6.8)
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Mediawiki Checkuser
Published: 2015-04-13
Last modified: 2026-06-17

Description

Cross-site request forgery (CSRF) vulnerability in the CheckUser extension for MediaWiki allows remote attackers to hijack the authentication of certain users for requests that retrieve sensitive user information via unspecified vectors.

Frequently asked questions

What is CVE-2015-2940?: Cross-site request forgery (CSRF) vulnerability in the CheckUser extension for MediaWiki allows remote attackers to hijack the authentication of certain users for requests that retrieve sensitive user information via unspecified vectors.
How severe is CVE-2015-2940?: CVE-2015-2940 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2015-2940 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-2940?: CVE-2015-2940 affects Mediawiki Checkuser. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-2940?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-2940 published?: CVE-2015-2940 was published on 2015-04-13 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:mediawiki:checkuser:-:*:*:*:*:mediawiki:*:*

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