Description

An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. Special:Contributions can leak that a "hidden" user exists.

Remediation

References

CVE-2021-30156

Related Vulnerabilities

Jenkins Protection Mechanism Failure Vulnerability (CVE-2021-21690 )

WordPress Plugin My Calendar Multiple Cross-Site Scripting Vulnerabilities (1.10.1)

PHP Other Vulnerability (CVE-2002-1954)

Rukovoditel Cross-site Scripting (XSS) Vulnerability (CVE-2019-7541)

WordPress Plugin External Links-nofollow, noopener & new window Cross-Site Scripting (2.55)

Severity

Medium

Classification

CVE-2021-30156 CWE-732 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Tags

Missing Update Known Vulnerabilities