CVE-2017-8810

HIGH

MediaWiki < 1.27.4, 1.28.x < 1.28.3, 1.29.x < 1.29.2 - Username Enumeration via Login Error Messages

Title source: llm
STIX 2.1

Description

MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2, when a private wiki is configured, provides different error messages for failed login attempts depending on whether the username exists, which allows remote attackers to enumerate account names and conduct brute-force attacks via a series of requests.

References (3)

Core 3
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1039812
Mailing List, Patch, Vendor Advisory x_refsource_confirm
https://lists.wikimedia.org/pipermail/mediawiki-announce/2017-November/000216.html
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2017/dsa-4036

Scores

CVSS v3 7.5
EPSS 0.0096
EPSS Percentile 76.7%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Details

CWE
CWE-200
Status published
Products (8)
debian/debian_linux 9.0
mediawiki/mediawiki 1.28.0
mediawiki/mediawiki 1.28.1
mediawiki/mediawiki 1.28.2
mediawiki/mediawiki 1.29.0
mediawiki/mediawiki 1.29.1
mediawiki/mediawiki < 1.27.3
n/a/MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2 MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2
Published Nov 15, 2017
Tracked Since Feb 18, 2026