High severity · published Jul 10, 2019
CVE-2019-12472
An Incorrect Access Control vulnerability was found in Wikimedia MediaWiki 1.18.0 through 1.32.1
7.5
CVSS
1.3%
EPSS
No
On KEV
Description
An Incorrect Access Control vulnerability was found in Wikimedia MediaWiki 1.18.0 through 1.32.1. It is possible to bypass the limits on IP range blocks ($wgBlockCIDRLimit) by using the API. Fixed in 1.32.2, 1.31.2, 1.30.2 and 1.27.6.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.3% · higher than 71% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ME
Mediawiki · Mediawiki
1.18.0 before 1.27.6; 1.30.0 before 1.30.2; 1.31.0 before 1.31.2; 1.32.0 before 1.32.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-12472
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-12472
Patch
https://lists.wikimedia.org/pipermail/wikitech-l/2019-June/092152.html
Issue Tracking
https://phabricator.wikimedia.org/T199540
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