Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2015-8624

Severity CVSS v4.0:
Pending analysis
Type:
CWE-352 Cross-Site Request Forgery (CSRF)
Publication date:
23/03/2017
Last modified:
20/04/2025

Description

The User::matchEditToken function in includes/User.php in MediaWiki before 1.23.12, 1.24.x before 1.24.5, 1.25.x before 1.25.4, and 1.26.x before 1.26.1 does not perform token comparison in constant time before determining if a debugging message should be logged, which allows remote attackers to guess the edit token and bypass CSRF protection via a timing attack, a different vulnerability than CVE-2015-8623.

Impact

Vector 3.x
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.80 HIGH
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
8.80
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:M/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 6.80 MEDIUM
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0
6.80
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:* 1.23.11 (including)
cpe:2.3:a:mediawiki:mediawiki:1.24.0:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.24.1:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.24.2:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.24.3:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.24.4:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.25.0:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.25.1:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.25.2:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.25.3:*:*:*:*:*:*:*
cpe:2.3:a:mediawiki:mediawiki:1.26.0:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools