CVE-2019-12472

Debian Security Advisory 4460-1

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Se encontró una vulnerabilidad de Control de Acceso Incorrecto en MediaWiki versiones 1.18.0 hasta 1.32.1 de Wikimedia. Es posible omitir los límites en los bloques de rango IP ($wgBlockCIDRLimit) mediante el uso de la API. Se corrigió en las versiones 1.32.2, 1.31.2, 1.30.2 y 1.27.6.

Multiple security vulnerabilities have been discovered in MediaWiki, a website engine for collaborative work, which may result in authentication bypass, denial of service, cross-site scripting, information disclosure and bypass of anti-spam measures.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-05-30 CVE Reserved
2019-06-12 CVE Published
2024-08-04 CVE Updated
2025-07-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (2)

URL	Tag	Source
https://phabricator.wikimedia.org/T199540	Issue Tracking

URL	Date	SRC

URL	Date	SRC
https://lists.wikimedia.org/pipermail/wikitech-l/2019-June/092152.html	2020-08-24

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Mediawiki Search vendor "Mediawiki"		Mediawiki Search vendor "Mediawiki" for product "Mediawiki"				>= 1.18.0 < 1.27.6 Search vendor "Mediawiki" for product "Mediawiki" and version " >= 1.18.0 < 1.27.6"		-		Affected
Mediawiki Search vendor "Mediawiki"		Mediawiki Search vendor "Mediawiki" for product "Mediawiki"				>= 1.30.0 < 1.30.2 Search vendor "Mediawiki" for product "Mediawiki" and version " >= 1.30.0 < 1.30.2"		-		Affected
Mediawiki Search vendor "Mediawiki"		Mediawiki Search vendor "Mediawiki" for product "Mediawiki"				>= 1.31.0 < 1.31.2 Search vendor "Mediawiki" for product "Mediawiki" and version " >= 1.31.0 < 1.31.2"		-		Affected
Mediawiki Search vendor "Mediawiki"		Mediawiki Search vendor "Mediawiki" for product "Mediawiki"				>= 1.32.0 < 1.32.2 Search vendor "Mediawiki" for product "Mediawiki" and version " >= 1.32.0 < 1.32.2"		-		Affected