UBUNTU-CVE-2020-35480

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Source
https://ubuntu.com/security/CVE-2020-35480
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-35480.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2020-35480
Upstream
Published
2020-12-18T08:15:00Z
Modified
2026-05-27T10:15:20Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

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.

References

Affected packages

Ubuntu:18.04:LTS
mediawiki

Package

Name
mediawiki
Purl
pkg:deb/ubuntu/mediawiki?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1:1.*
1:1.27.3-1
1:1.27.4-1
1:1.27.4-2
1:1.27.4-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "mediawiki",
            "binary_version": "1:1.27.4-3"
        },
        {
            "binary_name": "mediawiki-classes",
            "binary_version": "1:1.27.4-3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-35480.json"
Ubuntu:25.10
mediawiki

Package

Name
mediawiki
Purl
pkg:deb/ubuntu/mediawiki?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1:1.*
1:1.43.1+dfsg-1
1:1.43.1+dfsg-2
1:1.43.3+dfsg-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "mediawiki",
            "binary_version": "1:1.43.3+dfsg-1"
        },
        {
            "binary_name": "mediawiki-classes",
            "binary_version": "1:1.43.3+dfsg-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-35480.json"
Ubuntu:26.04:LTS
mediawiki

Package

Name
mediawiki
Purl
pkg:deb/ubuntu/mediawiki?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1:1.*
1:1.43.3+dfsg-1
1:1.43.5+dfsg-1
1:1.43.6+dfsg-2
1:1.43.8+dfsg-1
1:1.43.8+dfsg-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "mediawiki",
            "binary_version": "1:1.43.8+dfsg-2"
        },
        {
            "binary_name": "mediawiki-classes",
            "binary_version": "1:1.43.8+dfsg-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-35480.json"
Ubuntu:Pro:20.04:LTS
mediawiki

Package

Name
mediawiki
Purl
pkg:deb/ubuntu/mediawiki?arch=source&distro=esm-apps%2Ffocal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1:1.*
1:1.31.2-1ubuntu1
1:1.31.5-1
1:1.31.5-1ubuntu1
1:1.31.5-2
1:1.31.5-3
1:1.31.5-3ubuntu1
1:1.31.6-1
1:1.31.7-1
1:1.31.7-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "mediawiki",
            "binary_version": "1:1.31.7-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "mediawiki-classes",
            "binary_version": "1:1.31.7-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-35480.json"
Ubuntu:Pro:22.04:LTS
mediawiki

Package

Name
mediawiki
Purl
pkg:deb/ubuntu/mediawiki?arch=source&distro=esm-apps%2Fjammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1:1.*
1:1.35.3-1
1:1.35.4-1
1:1.35.5-1
1:1.35.5-1ubuntu1
1:1.35.5-1ubuntu2
1:1.35.5-1ubuntu3
1:1.35.6-1
1:1.35.6-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "mediawiki",
            "binary_version": "1:1.35.6-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "mediawiki-classes",
            "binary_version": "1:1.35.6-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-35480.json"
Ubuntu:Pro:24.04:LTS
mediawiki

Package

Name
mediawiki
Purl
pkg:deb/ubuntu/mediawiki?arch=source&distro=esm-apps%2Fnoble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1:1.*
1:1.39.4-2
1:1.39.5-1
1:1.39.6-1
1:1.39.7-1
1:1.39.7-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "mediawiki",
            "binary_version": "1:1.39.7-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "mediawiki-classes",
            "binary_version": "1:1.39.7-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-35480.json"