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CVE-2019-12468
CRITICAL
An Incorrect Access Control vulnerability was found in Wikimedia MediaWiki 1.27.0 through 1.32.1. Directly POSTing to Special:ChangeEmail would allow for bypassing re-authentication, allowing for potential account takeover.
Published: Jul 10, 2019
Modified: Jun 17, 2026
CWE-306
CVSS Metrics
CVSSv3
Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products (2)
| Vendor | Product | Version |
|---|---|---|
| mediawiki | mediawiki | * ≥ 1.27.0 |
| debian | debian_linux | 9.0 |
GitHub Security Advisory GHSA-wrhx-3pxr-6vgg
Wikimedia MediaWiki Incorrect Access Control vulnerability
composer
mediawiki/core
>= 1.27.0, < 1.27.6
Fixed: 1.27.6
composer
mediawiki/core
>= 1.30.0, < 1.30.2
Fixed: 1.30.2
composer
mediawiki/core
>= 1.31.0, < 1.31.2
Fixed: 1.31.2
composer
mediawiki/core
>= 1.32.0, < 1.32.2
Fixed: 1.32.2
References (10)
- https://lists.wikimedia.org/pipermail/mediawiki-announce/ Third Party Advisory
- https://lists.wikimedia.org/pipermail/wikitech-l/2019-June/092152.html Patch, Third Party Advisory
- https://phabricator.wikimedia.org/T197279 Patch, Third Party Advisory
- https://seclists.org/bugtraq/2019/Jun/12 Mailing List, Third Party Advisory
- https://www.debian.org/security/2019/dsa-4460 Third Party Advisory
- https://lists.wikimedia.org/pipermail/mediawiki-announce/ Third Party Advisory
- https://lists.wikimedia.org/pipermail/wikitech-l/2019-June/092152.html Patch, Third Party Advisory
- https://phabricator.wikimedia.org/T197279 Patch, Third Party Advisory
- https://seclists.org/bugtraq/2019/Jun/12 Mailing List, Third Party Advisory
- https://www.debian.org/security/2019/dsa-4460 Third Party Advisory
Risk Scores
CVSS Score
9.8 / 10
EPSS Score
3.43%
Top 12% most likely to be exploited
Threat Score
40.2 / 100
Data Sources
NVD
EPSS
GitHub