CVE-2020-15164 — Authentication Bypass in Scratch Login (mediawiki-scratch-login)
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 tho…
Published: 2020-08-28 · CVSS: 10.0 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7