vulnerability
Arch Linux: Information disclosure (CVE-2020-35480)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:N/C:P/I:N/A:N) | Dec 18, 2020 | Jul 11, 2025 | Mar 25, 2026 |
Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
Dec 18, 2020
Added
Jul 11, 2025
Modified
Mar 25, 2026
Description
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.
Solution
arch-linux-upgrade-latest
References
- CVE-2020-35480
- https://attackerkb.com/topics/CVE-2020-35480
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2020-23151
- https://lists.debian.org/debian-lts-announce/2020/12/msg00034.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/STT5Z4A3BCXVH3WIPICWU2FP4IPIMUPC/
- https://lists.wikimedia.org/pipermail/mediawiki-announce/2020-December/000268.html
- https://phabricator.wikimedia.org/T120883
- https://security.archlinux.org/ASA-202101-22
- https://www.debian.org/security/2020/dsa-4816
- CWE-203
- EUVD-EUVD-2020-23151
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