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Vulnerability details: VCID-ux7m-sv8j-ybeq
Vulnerability ID VCID-ux7m-sv8j-ybeq
Aliases CVE-2020-25827
GHSA-rqvj-fc2x-99q6
Summary OATHAuth extension in MediaWiki is not implementing rate limit An issue was discovered in the OATHAuth extension in MediaWiki before 1.31.9 and 1.32.x through 1.34.x before 1.34.3. For Wikis using OATHAuth on a farm/cluster (such as via CentralAuth), rate limiting of OATH tokens is only done on a single site level. Thus, multiple requests can be made across many wikis/sites concurrently.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-307 Improper Restriction of Excessive Authentication Attempts
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-25827.json
epss 0.00246 https://api.first.org/data/v1/epss?cve=CVE-2020-25827
epss 0.00246 https://api.first.org/data/v1/epss?cve=CVE-2020-25827
epss 0.00246 https://api.first.org/data/v1/epss?cve=CVE-2020-25827
epss 0.00246 https://api.first.org/data/v1/epss?cve=CVE-2020-25827
epss 0.00246 https://api.first.org/data/v1/epss?cve=CVE-2020-25827
epss 0.00246 https://api.first.org/data/v1/epss?cve=CVE-2020-25827
epss 0.00246 https://api.first.org/data/v1/epss?cve=CVE-2020-25827
epss 0.00246 https://api.first.org/data/v1/epss?cve=CVE-2020-25827
epss 0.00246 https://api.first.org/data/v1/epss?cve=CVE-2020-25827
epss 0.00246 https://api.first.org/data/v1/epss?cve=CVE-2020-25827
epss 0.00246 https://api.first.org/data/v1/epss?cve=CVE-2020-25827
epss 0.00246 https://api.first.org/data/v1/epss?cve=CVE-2020-25827
epss 0.00246 https://api.first.org/data/v1/epss?cve=CVE-2020-25827
epss 0.00246 https://api.first.org/data/v1/epss?cve=CVE-2020-25827
epss 0.00246 https://api.first.org/data/v1/epss?cve=CVE-2020-25827
epss 0.00246 https://api.first.org/data/v1/epss?cve=CVE-2020-25827
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2020-25827
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2020-25827
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2020-25827
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2020-25827
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2020-25827
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2020-25827
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2020-25827
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2020-25827
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2020-25827
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2020-25827
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2020-25827
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2020-25827
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2020-25827
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-rqvj-fc2x-99q6
cvssv3.1 7.5 https://github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2020-25827.yaml
generic_textual HIGH https://github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2020-25827.yaml
cvssv3.1 7.5 https://github.com/wikimedia/mediawiki
generic_textual HIGH https://github.com/wikimedia/mediawiki
cvssv3.1 7.5 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RTTPZ7XMDS66I442OLLHXBDNP2LCBJU6
generic_textual HIGH https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RTTPZ7XMDS66I442OLLHXBDNP2LCBJU6
cvssv3.1 7.5 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RTTPZ7XMDS66I442OLLHXBDNP2LCBJU6
generic_textual HIGH https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RTTPZ7XMDS66I442OLLHXBDNP2LCBJU6
cvssv3.1 7.5 https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048480.html
generic_textual HIGH https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048480.html
cvssv3.1 7.5 https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048488.html
generic_textual HIGH https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048488.html
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2020-25827
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2020-25827
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2020-25827
cvssv3.1 7.5 https://phabricator.wikimedia.org/T251661
generic_textual HIGH https://phabricator.wikimedia.org/T251661
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-25827.json
https://api.first.org/data/v1/epss?cve=CVE-2020-25827
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15005
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-17367
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-17368
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25812
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25813
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25814
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25827
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25828
https://github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2020-25827.yaml
https://github.com/wikimedia/mediawiki
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RTTPZ7XMDS66I442OLLHXBDNP2LCBJU6
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RTTPZ7XMDS66I442OLLHXBDNP2LCBJU6/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RTTPZ7XMDS66I442OLLHXBDNP2LCBJU6
https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048480.html
https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048488.html
https://nvd.nist.gov/vuln/detail/CVE-2020-25827
https://phabricator.wikimedia.org/T251661
1903761 https://bugzilla.redhat.com/show_bug.cgi?id=1903761
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:fedoraproject:fedora:33:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
GHSA-rqvj-fc2x-99q6 https://github.com/advisories/GHSA-rqvj-fc2x-99q6
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-2020-25827.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: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2020-25827.yaml
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://github.com/wikimedia/mediawiki
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://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RTTPZ7XMDS66I442OLLHXBDNP2LCBJU6
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://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RTTPZ7XMDS66I442OLLHXBDNP2LCBJU6
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://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048480.html
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://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048488.html
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-2020-25827
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-2020-25827
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://phabricator.wikimedia.org/T251661
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 0.47716
EPSS Score 0.00246
Published At Aug. 12, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T09:16:21.425206+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-rqvj-fc2x-99q6/GHSA-rqvj-fc2x-99q6.json 37.0.0