CVE-2019-12472

published 2019-07-10

CVE-2019-12472: 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…

Priority P3 41 high 7.5 CVSS 3.0

AV N AC L PR N UI N S U C N I H A N

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.

Affected

13 ranges

Vendor	Product	Version range	Fixed in
debian	mediawiki	< mediawiki 1:1.31.2-1 (bookworm)	mediawiki 1:1.31.2-1 (bookworm)
mediawiki	core	>= 1.18.0 < 1.27.6	1.27.6
mediawiki	core	>= 1.30.0 < 1.30.2	1.30.2
mediawiki	core	>= 1.31.0 < 1.31.2	1.31.2
mediawiki	core	>= 1.32.0 < 1.32.2	1.32.2
mediawiki	mediawiki	>= 0 < 1:1.31.2-1	1:1.31.2-1
mediawiki	mediawiki	>= 0 < 1:1.31.2-1	1:1.31.2-1
mediawiki	mediawiki	>= 0 < 1:1.31.2-1	1:1.31.2-1
mediawiki	mediawiki	>= 0 < 1:1.31.2-1	1:1.31.2-1
mediawiki	mediawiki	>= 1.18.0 < 1.27.6	1.27.6
mediawiki	mediawiki	>= 1.30.0 < 1.30.2	1.30.2
mediawiki	mediawiki	>= 1.31.0 < 1.31.2	1.31.2
mediawiki	mediawiki	>= 1.32.0 < 1.32.2	1.32.2

CVSS provenance

nvd v3.0 7.5 HIGH CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

nvd v2.0 5.0 MEDIUM AV:N/AC:L/Au:N/C:N/I:P/A:N

osv 7.5 HIGH

vendor_debian 7.5 HIGH

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.

CWE-284