What is CVE-2020-12051?

CVE-2020-12051 is a high-severity vulnerability in MediaWiki. CVSS score: 7.5/10. Published 2020-04-21.

How severe is CVE-2020-12051?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in MediaWiki

CVE-2020-12051

The CentralAuth extension through REL1_34 for MediaWiki allows remote attackers to obtain sensitive hidden account information via an api.php?action=query&meta=globaluserinfo&guiuser= request. In other words, the information can be retrieved via the action API even though access would be denied when simply visiting wiki/Special:CentralAuth in a web browser.

EPSS: 0.013 (67.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Mediawiki
N/a — versions n/a

References

cve@mitre.org (Patch, x_refsource_MISC, Vendor Advisory)
cve@mitre.org (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2020-12051?: CVE-2020-12051 is a high-severity vulnerability in MediaWiki. CVSS score: 7.5/10. Published 2020-04-21.
How severe is CVE-2020-12051?: High severity. CVSS v3 base score is 7.5 out of 10.