GSD-2020-35480
Vulnerability from gsd - Updated: 2023-12-13 01:22Details
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.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2020-35480",
"description": "An issue was discovered in MediaWiki before 1.35.1. Missing users (accounts that don\u0027t 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.",
"id": "GSD-2020-35480",
"references": [
"https://www.debian.org/security/2020/dsa-4816",
"https://advisories.mageia.org/CVE-2020-35480.html",
"https://security.archlinux.org/CVE-2020-35480"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2020-35480"
],
"details": "An issue was discovered in MediaWiki before 1.35.1. Missing users (accounts that don\u0027t 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.",
"id": "GSD-2020-35480",
"modified": "2023-12-13T01:22:00.669502Z",
"schema_version": "1.4.0"
}
},
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"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2020-35480",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
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"vendor_name": "n/a"
}
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"value": "An issue was discovered in MediaWiki before 1.35.1. Missing users (accounts that don\u0027t 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."
}
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"value": "n/a"
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},
"references": {
"reference_data": [
{
"name": "https://phabricator.wikimedia.org/T120883",
"refsource": "MISC",
"url": "https://phabricator.wikimedia.org/T120883"
},
{
"name": "https://lists.wikimedia.org/pipermail/mediawiki-announce/2020-December/000268.html",
"refsource": "MISC",
"url": "https://lists.wikimedia.org/pipermail/mediawiki-announce/2020-December/000268.html"
},
{
"name": "DSA-4816",
"refsource": "DEBIAN",
"url": "https://www.debian.org/security/2020/dsa-4816"
},
{
"name": "[debian-lts-announce] 20201223 [SECURITY] [DLA 2504-1] mediawiki security update",
"refsource": "MLIST",
"url": "https://lists.debian.org/debian-lts-announce/2020/12/msg00034.html"
},
{
"name": "FEDORA-2020-0be2d40e13",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/STT5Z4A3BCXVH3WIPICWU2FP4IPIMUPC/"
}
]
}
},
"nvd.nist.gov": {
"configurations": {
"CVE_data_version": "4.0",
"nodes": [
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "1.35.1",
"vulnerable": true
}
],
"operator": "OR"
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"cpe_match": [
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"vulnerable": true
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"operator": "OR"
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{
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"cpe_match": [
{
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"description": {
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}
]
},
"problemtype": {
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"value": "CWE-203"
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},
"references": {
"reference_data": [
{
"name": "https://lists.wikimedia.org/pipermail/mediawiki-announce/2020-December/000268.html",
"refsource": "MISC",
"tags": [
"Mailing List",
"Release Notes",
"Vendor Advisory"
],
"url": "https://lists.wikimedia.org/pipermail/mediawiki-announce/2020-December/000268.html"
},
{
"name": "https://phabricator.wikimedia.org/T120883",
"refsource": "MISC",
"tags": [
"Permissions Required"
],
"url": "https://phabricator.wikimedia.org/T120883"
},
{
"name": "DSA-4816",
"refsource": "DEBIAN",
"tags": [
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],
"url": "https://www.debian.org/security/2020/dsa-4816"
},
{
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],
"url": "https://lists.debian.org/debian-lts-announce/2020/12/msg00034.html"
},
{
"name": "FEDORA-2020-0be2d40e13",
"refsource": "FEDORA",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/STT5Z4A3BCXVH3WIPICWU2FP4IPIMUPC/"
}
]
}
},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 5.0,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "MEDIUM",
"userInteractionRequired": false
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 1.4
}
},
"lastModifiedDate": "2022-04-08T14:21Z",
"publishedDate": "2020-12-18T08:15Z"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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