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Vulnerability details: VCID-keup-3kbx-aaaj
Vulnerability ID VCID-keup-3kbx-aaaj
Aliases CVE-2020-35480
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-203 Observable Discrepancy
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
System Score Found at
cvssv3 5.3 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-35480.json
epss 0.00300 https://api.first.org/data/v1/epss?cve=CVE-2020-35480
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epss 0.00344 https://api.first.org/data/v1/epss?cve=CVE-2020-35480
epss 0.00344 https://api.first.org/data/v1/epss?cve=CVE-2020-35480
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epss 0.00344 https://api.first.org/data/v1/epss?cve=CVE-2020-35480
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epss 0.00344 https://api.first.org/data/v1/epss?cve=CVE-2020-35480
epss 0.00344 https://api.first.org/data/v1/epss?cve=CVE-2020-35480
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epss 0.00344 https://api.first.org/data/v1/epss?cve=CVE-2020-35480
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epss 0.00344 https://api.first.org/data/v1/epss?cve=CVE-2020-35480
epss 0.00356 https://api.first.org/data/v1/epss?cve=CVE-2020-35480
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epss 0.00356 https://api.first.org/data/v1/epss?cve=CVE-2020-35480
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epss 0.00356 https://api.first.org/data/v1/epss?cve=CVE-2020-35480
epss 0.00552 https://api.first.org/data/v1/epss?cve=CVE-2020-35480
epss 0.00552 https://api.first.org/data/v1/epss?cve=CVE-2020-35480
epss 0.00555 https://api.first.org/data/v1/epss?cve=CVE-2020-35480
epss 0.00555 https://api.first.org/data/v1/epss?cve=CVE-2020-35480
epss 0.00555 https://api.first.org/data/v1/epss?cve=CVE-2020-35480
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epss 0.00555 https://api.first.org/data/v1/epss?cve=CVE-2020-35480
epss 0.00555 https://api.first.org/data/v1/epss?cve=CVE-2020-35480
epss 0.00555 https://api.first.org/data/v1/epss?cve=CVE-2020-35480
epss 0.00555 https://api.first.org/data/v1/epss?cve=CVE-2020-35480
epss 0.00555 https://api.first.org/data/v1/epss?cve=CVE-2020-35480
epss 0.00555 https://api.first.org/data/v1/epss?cve=CVE-2020-35480
epss 0.00555 https://api.first.org/data/v1/epss?cve=CVE-2020-35480
epss 0.00555 https://api.first.org/data/v1/epss?cve=CVE-2020-35480
epss 0.00555 https://api.first.org/data/v1/epss?cve=CVE-2020-35480
epss 0.00555 https://api.first.org/data/v1/epss?cve=CVE-2020-35480
epss 0.00555 https://api.first.org/data/v1/epss?cve=CVE-2020-35480
epss 0.00555 https://api.first.org/data/v1/epss?cve=CVE-2020-35480
epss 0.00555 https://api.first.org/data/v1/epss?cve=CVE-2020-35480
epss 0.01538 https://api.first.org/data/v1/epss?cve=CVE-2020-35480
rhbs low https://bugzilla.redhat.com/show_bug.cgi?id=1909240
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2020-35480
cvssv3 5.3 https://nvd.nist.gov/vuln/detail/CVE-2020-35480
cvssv3.1 5.3 https://nvd.nist.gov/vuln/detail/CVE-2020-35480
archlinux Medium https://security.archlinux.org/AVG-1371
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-35480.json
https://api.first.org/data/v1/epss?cve=CVE-2020-35480
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-35475
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-35477
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-35479
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-35480
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.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/STT5Z4A3BCXVH3WIPICWU2FP4IPIMUPC/
https://lists.wikimedia.org/pipermail/mediawiki-announce/2020-December/000268.html
https://phabricator.wikimedia.org/T120883
https://www.debian.org/security/2020/dsa-4816
1909240 https://bugzilla.redhat.com/show_bug.cgi?id=1909240
ASA-202101-22 https://security.archlinux.org/ASA-202101-22
AVG-1371 https://security.archlinux.org/AVG-1371
cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
CVE-2020-35480 https://nvd.nist.gov/vuln/detail/CVE-2020-35480
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-35480.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-35480
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-35480
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-35480
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.69147
EPSS Score 0.00300
Published At Dec. 17, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.