CVEvulnerability

CVE-2020-15164

10.0 CRITICAL Published 2020-08-28 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-08-28
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
10.0 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
CVSS 3.1 ([email protected])
10.0 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
CVSS 2.0 ([email protected])
6.4 MEDIUM — AV:N/AC:L/Au:N/C:P/I:P/A:N
Weaknesses
CWE-287, CWE-74

Description

in Scratch Login (MediaWiki extension) before version 1.1, any account can be logged into by using the same username with leading, trailing, or repeated underscore(s), since those are treated as whitespace and trimmed by MediaWiki. This affects all users on any wiki using this extension. Since version 1.1, comments by users whose usernames would be trimmed on MediaWiki are ignored when searching for the verification code.

Affected configurations

• scratch-wiki scratch login (< 1.1)

Related

Weakness · CWE (2)

  • CWE-287 Improper Authentication weakness
  • CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component weakness

References