PT-2019-3450 · Wikimedia+1 · Mediawiki+1

Trijnstel · Published 2017-08-22 · Updated 2025-09-29 · CVE-2019-12472

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions MediaWiki versions 1.18.0 through 1.32.1

Description The issue is related to an Incorrect Access Control vulnerability. It allows bypassing the limits on IP range blocks by utilizing the API. This could potentially enable a remote attacker to compromise data integrity.

Recommendations For MediaWiki versions 1.18.0 through 1.32.1, update to version 1.32.2, 1.31.2, 1.30.2, or 1.27.6 to resolve the issue. As a temporary workaround, consider restricting access to the API until the update is applied.

Exploit

Fix

Improper Access Control

Weakness Enumeration

CWE-284

Related Identifiers

ALSA-2025_16880

ALT-PU-2017-2095

ALT-PU-2019-2016

ALT-PU-2019-2054

BDU:2019-03621

CVE-2019-12472

DSA-4460-1

GHSA-7MQG-5FGH-XH4R

MGASA-2019-0279

Affected Products

Alt Linux

Mediawiki

References · 21

• 🔥 https://github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2019-12472.yaml · Exploit
• https://security-tracker.debian.org/tracker/CVE-2019-12472 · Vendor Advisory
• https://lists.wikimedia.org/pipermail/wikitech-l/2019-June/092152.html · Patch
• https://osv.dev/vulnerability/MGASA-2019-0279 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2019-12472 · Vendor Advisory
• https://bdu.fstec.ru/vul/2019-03621 · Security Note
• https://cve.org/CVERecord?id=CVE-2019-12472 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2019-12472 · Security Note
• https://ubuntu.com/security/CVE-2019-12472 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2019-0279.html · Security Note
• https://osv.dev/vulnerability/DSA-4460-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2019-12472 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2019-12472 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-7mqg-5fgh-xh4r · Vendor Advisory
• https://github.com/wikimedia/mediawiki · Note