CVE-2020-12051

Description

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.

7.5

CVSS

Severity: High

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.32%

Vendor Advisory wikimedia.org Vendor Advisory wikimedia.org

Affected: n/a n/a

References

Link	Tags
https://phabricator.wikimedia.org/T250594	patch vendor advisory
https://gerrit.wikimedia.org/r/#/q/I3c80641dc1202df7428714f0ca44717a51ff6021	vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-12051?: CVE-2020-12051 has been scored as a high severity vulnerability.
How to fix CVE-2020-12051?: To fix CVE-2020-12051, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-12051 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2020-12051 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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