How severe is CVE-2013-4306?

CVE-2013-4306 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2013-4306 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-4306?

CVE-2013-4306 affects Mediawiki. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2013-4306?

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

When was CVE-2013-4306 published?

CVE-2013-4306 was published on 2013-10-11 and last updated on 2026-06-16.

CVE-2013-4306

CVE-2013-4306 is a medium-severity vulnerability in Mediawiki 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% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Mediawiki
Published: 2013-10-11
Last modified: 2026-06-16

Description

Cross-site request forgery (CSRF) vulnerability in api/ApiQueryCheckUser.php in the CheckUser extension for MediaWiki, possibly Checkuser before 2.3, allows remote attackers to hijack the authentication of arbitrary users for requests that "perform sensitive write actions" via unspecified vectors.

Frequently asked questions

What is CVE-2013-4306?: Cross-site request forgery (CSRF) vulnerability in api/ApiQueryCheckUser.php in the CheckUser extension for MediaWiki, possibly Checkuser before 2.3, allows remote attackers to hijack the authentication of arbitrary users for requests that "perform sensitive write actions" via unspecified vectors.
How severe is CVE-2013-4306?: CVE-2013-4306 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2013-4306 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-4306?: CVE-2013-4306 affects Mediawiki. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2013-4306?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-4306 published?: CVE-2013-4306 was published on 2013-10-11 and last updated on 2026-06-16.

References

Affected products (1)

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

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