CVE-2020-35480

CVSS V2 Medium 5 CVSS V3 Medium 5.3
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.
Overview
  • CVE ID
  • CVE-2020-35480
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-12-18T08:15:15
  • Last Modified Date
  • 2022-04-08T14:21:02
Weakness Enumerations
CWE URL
CWE-203 http://cwe.mitre.org/data/definitions/203.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:* 1 OR 1.35.1
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:P/I:N/A:N
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • NONE
  • Availability Impact
  • NONE
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • LOW
  • Availability Impact
  • NONE
  • Base Score
  • 5.3
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 3.9
  • Impact Score
  • 1.4
References
Reference URL Reference Tags
https://lists.wikimedia.org/pipermail/mediawiki-announce/2020-December/000268.html Mailing List Release Notes Vendor Advisory
https://phabricator.wikimedia.org/T120883 Permissions Required
https://www.debian.org/security/2020/dsa-4816 Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/12/msg00034.html Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/STT5Z4A3BCXVH3WIPICWU2FP4IPIMUPC/ Mailing List Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-35480
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-35480
History
Created Old Value New Value Data Type Notes
2022-05-10 06:29:00 Added to TrackCVE
2022-12-05 18:32:56 2020-12-18T08:15Z 2020-12-18T08:15:15 CVE Published Date updated
2022-12-05 18:32:56 2022-04-08T14:21:02 CVE Modified Date updated
2022-12-05 18:32:56 Analyzed Vulnerability Status updated