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Vulnerability details: VCID-xcxk-97jc-dyer
Vulnerability ID VCID-xcxk-97jc-dyer
Aliases CVE-2021-30158
Summary mediawiki: blocked users are unable to use Special:ResetTokens
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-287 Improper Authentication
System Score Found at
cvssv3 4.3 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-30158.json
epss 0.00725 https://api.first.org/data/v1/epss?cve=CVE-2021-30158
epss 0.00725 https://api.first.org/data/v1/epss?cve=CVE-2021-30158
epss 0.00725 https://api.first.org/data/v1/epss?cve=CVE-2021-30158
epss 0.00725 https://api.first.org/data/v1/epss?cve=CVE-2021-30158
epss 0.00725 https://api.first.org/data/v1/epss?cve=CVE-2021-30158
epss 0.00725 https://api.first.org/data/v1/epss?cve=CVE-2021-30158
epss 0.00725 https://api.first.org/data/v1/epss?cve=CVE-2021-30158
epss 0.00725 https://api.first.org/data/v1/epss?cve=CVE-2021-30158
epss 0.00725 https://api.first.org/data/v1/epss?cve=CVE-2021-30158
epss 0.00725 https://api.first.org/data/v1/epss?cve=CVE-2021-30158
epss 0.00725 https://api.first.org/data/v1/epss?cve=CVE-2021-30158
epss 0.00725 https://api.first.org/data/v1/epss?cve=CVE-2021-30158
epss 0.00725 https://api.first.org/data/v1/epss?cve=CVE-2021-30158
epss 0.00725 https://api.first.org/data/v1/epss?cve=CVE-2021-30158
epss 0.00725 https://api.first.org/data/v1/epss?cve=CVE-2021-30158
epss 0.00725 https://api.first.org/data/v1/epss?cve=CVE-2021-30158
epss 0.00725 https://api.first.org/data/v1/epss?cve=CVE-2021-30158
epss 0.00725 https://api.first.org/data/v1/epss?cve=CVE-2021-30158
epss 0.00725 https://api.first.org/data/v1/epss?cve=CVE-2021-30158
epss 0.00725 https://api.first.org/data/v1/epss?cve=CVE-2021-30158
epss 0.00725 https://api.first.org/data/v1/epss?cve=CVE-2021-30158
epss 0.00725 https://api.first.org/data/v1/epss?cve=CVE-2021-30158
epss 0.00725 https://api.first.org/data/v1/epss?cve=CVE-2021-30158
epss 0.00725 https://api.first.org/data/v1/epss?cve=CVE-2021-30158
epss 0.00725 https://api.first.org/data/v1/epss?cve=CVE-2021-30158
epss 0.00725 https://api.first.org/data/v1/epss?cve=CVE-2021-30158
epss 0.00725 https://api.first.org/data/v1/epss?cve=CVE-2021-30158
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2021-30158
cvssv3.1 5.3 https://nvd.nist.gov/vuln/detail/CVE-2021-30158
archlinux Medium https://security.archlinux.org/AVG-1775
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-30158.json
https://api.first.org/data/v1/epss?cve=CVE-2021-30158
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20270
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27291
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30152
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30154
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30155
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30157
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30158
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30159
https://lists.debian.org/debian-lts-announce/2021/05/msg00003.html
https://lists.debian.org/debian-lts-announce/2021/05/msg00006.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/26UJGHF7LJDOCQN6A3Z4PM7PYRKENJHE/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2OMSV7B2TCFBOCICN3B4SMQP5HVRJQIT/
https://phabricator.wikimedia.org/T277009
https://security.gentoo.org/glsa/202107-40
https://www.debian.org/security/2021/dsa-4889
1946698 https://bugzilla.redhat.com/show_bug.cgi?id=1946698
AVG-1775 https://security.archlinux.org/AVG-1775
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:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
CVE-2021-30158 https://nvd.nist.gov/vuln/detail/CVE-2021-30158
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-30158.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-2021-30158
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-2021-30158
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 0.71655
EPSS Score 0.00725
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T10:15:48.939097+00:00 RedHat Importer Import https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-30158.json 37.0.0