CVE-2020-12051 Information disclosure in n/a

What is CVE-2020-12051?

CVE-2020-12051 is a high-severity vulnerability in Mediawiki Mediawiki, published on 21 Apr 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Which versions are affected by CVE-2020-12051?

1 open source package ship an affected version, including mediawiki. It affects 1 product.

Products include Mediawiki Mediawiki.

How do I fix CVE-2020-12051?

Apply the vendor's patch.

Is CVE-2020-12051 being exploited?

There is no known exploitation of CVE-2020-12051 in the wild and no public exploit code.

Other vulnerabilities in Mediawiki Mediawiki

• CVE-2023-37303 Denial of service in n/a Critical 9.8
• CVE-2022-29904 SQL injection in n/a Critical 9.8
• CVE-2022-29906 Missing authorization in n/a Critical 9.8
• CVE-2022-28205 Business logic in n/a Critical 9.8
• CVE-2022-28206 Missing authorization in n/a Critical 9.8

All Mediawiki Mediawiki vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-mediawiki-2020-12051, GHSA-4892-82wr-4cv3, MINI-269c-gh2j-x84f, MINI-fvxc-g39j-x6xg, MINI-g6gg-hr7c-j228, MINI-rp6g-jhmc-r625.