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Vulnerability details: VCID-9cq6-c3xb-aaam
Vulnerability ID VCID-9cq6-c3xb-aaam
Aliases CVE-2021-35197
Summary In MediaWiki before 1.31.15, 1.32.x through 1.35.x before 1.35.3, and 1.36.x before 1.36.1, bots have certain unintended API access. When a bot account has a "sitewide block" applied, it is able to still "purge" pages through the MediaWiki Action API (which a "sitewide block" should have prevented).
Status Published
Exploitability 0.5
Weighted Severity 6.8
Risk 3.4
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-863 Incorrect Authorization
CWE-306 Missing Authentication for Critical Function
System Score Found at
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-35197.json
epss 0.00323 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.00323 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.00323 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.00323 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
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epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
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epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
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epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
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epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0073 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.0137 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.01684 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.01684 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.01684 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.01684 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.01684 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.01684 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.01684 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.01684 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.01684 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.01684 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
epss 0.01684 https://api.first.org/data/v1/epss?cve=CVE-2021-35197
rhbs medium https://bugzilla.redhat.com/show_bug.cgi?id=1980308
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2021-35197
cvssv3 7.5 https://nvd.nist.gov/vuln/detail/CVE-2021-35197
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2021-35197
archlinux Medium https://security.archlinux.org/AVG-2093
cvssv3.1 6.1 https://security.gentoo.org/glsa/202107-40
generic_textual MODERATE https://security.gentoo.org/glsa/202107-40
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-35197.json
https://api.first.org/data/v1/epss?cve=CVE-2021-35197
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-35197
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41798
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41799
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41800
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41801
https://lists.debian.org/debian-lts-announce/2021/10/msg00003.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CJDYJQWT43GBD6GNQ4OW7JOZ6WQ6DZTN/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MDBPECBWN6LWNSWIQMVXK6PP4YFEUYHA/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QNEAI2T3Y65I55ZB6UE6RMC662RZTGRX/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CJDYJQWT43GBD6GNQ4OW7JOZ6WQ6DZTN/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MDBPECBWN6LWNSWIQMVXK6PP4YFEUYHA/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QNEAI2T3Y65I55ZB6UE6RMC662RZTGRX/
https://lists.wikimedia.org/hyperkitty/list/mediawiki-announce%40lists.wikimedia.org/thread/YR3X4L2CPSEJVSY543AWEO65TD6APXHP/
https://lists.wikimedia.org/hyperkitty/list/mediawiki-announce@lists.wikimedia.org/thread/YR3X4L2CPSEJVSY543AWEO65TD6APXHP/
https://phabricator.wikimedia.org/T280226
https://security.gentoo.org/glsa/202107-40
https://www.debian.org/security/2021/dsa-4979
1980308 https://bugzilla.redhat.com/show_bug.cgi?id=1980308
ASA-202107-7 https://security.archlinux.org/ASA-202107-7
AVG-2093 https://security.archlinux.org/AVG-2093
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:11.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
CVE-2021-35197 https://nvd.nist.gov/vuln/detail/CVE-2021-35197
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-35197.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:N/I:P/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2021-35197
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:N/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2021-35197
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:N/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2021-35197
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:R/S:C/C:L/I:L/A:N Found at https://security.gentoo.org/glsa/202107-40
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 0.70328
EPSS Score 0.00323
Published At Dec. 17, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.