An issue was discovered in MediaWiki before 1.35.1. Missing users (accounts that don't exist) and hidden users (accounts that have been explicitly hidden due to being abusive, or similar) that the viewer cannot see are handled differently, exposing sensitive information about the hidden status to unprivileged viewers. This exists on various code paths.
Advisories
Source ID Title
Debian DLA Debian DLA DLA-2504-1 mediawiki security update
Debian DSA Debian DSA DSA-4816-1 mediawiki security update
EUVD EUVD EUVD-2020-23151 An issue was discovered in MediaWiki before 1.35.1. Missing users (accounts that don't exist) and hidden users (accounts that have been explicitly hidden due to being abusive, or similar) that the viewer cannot see are handled differently, exposing sensitive information about the hidden status to unprivileged viewers. This exists on various code paths.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-04T17:02:08.193Z

Reserved: 2020-12-16T00:00:00

Link: CVE-2020-35480

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-12-18T08:15:15.437

Modified: 2024-11-21T05:27:22.990

Link: CVE-2020-35480

cve-icon Redhat

Severity : Low

Publid Date: 2020-12-18T00:00:00Z

Links: CVE-2020-35480 - Bugzilla

cve-icon OpenCVE Enrichment

No data.