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Vulnerability details: VCID-ptnd-8zfz-9kh8
Vulnerability ID VCID-ptnd-8zfz-9kh8
Aliases CVE-2019-12468
GHSA-wrhx-3pxr-6vgg
Summary Wikimedia MediaWiki Incorrect Access Control vulnerability An Incorrect Access Control vulnerability was found in Wikimedia MediaWiki 1.27.0 through 1.32.1. Directly POSTing to Special:ChangeEmail would allow for bypassing re-authentication, allowing for potential account takeover.
Status Published
Exploitability None
Weighted Severity None
Risk None
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-284 Improper Access Control
CWE-306 Missing Authentication for Critical Function
System Score Found at
epss 0.00423 https://api.first.org/data/v1/epss?cve=CVE-2019-12468
cvssv3.1 9.8 https://github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2019-12468.yaml
generic_textual CRITICAL https://github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2019-12468.yaml
cvssv3.1 9.8 https://github.com/wikimedia/mediawiki
generic_textual CRITICAL https://github.com/wikimedia/mediawiki
cvssv3.1 9.8 https://lists.wikimedia.org/pipermail/mediawiki-announce
generic_textual CRITICAL https://lists.wikimedia.org/pipermail/mediawiki-announce
cvssv3.1 9.8 https://lists.wikimedia.org/pipermail/wikitech-l/2019-June/092152.html
generic_textual CRITICAL https://lists.wikimedia.org/pipermail/wikitech-l/2019-June/092152.html
cvssv2 7.5 https://nvd.nist.gov/vuln/detail/CVE-2019-12468
cvssv3 9.8 https://nvd.nist.gov/vuln/detail/CVE-2019-12468
cvssv3.1 9.8 https://nvd.nist.gov/vuln/detail/CVE-2019-12468
generic_textual CRITICAL https://nvd.nist.gov/vuln/detail/CVE-2019-12468
cvssv3.1 9.8 https://phabricator.wikimedia.org/T197279
generic_textual CRITICAL https://phabricator.wikimedia.org/T197279
cvssv3.1 9.8 https://seclists.org/bugtraq/2019/Jun/12
generic_textual CRITICAL https://seclists.org/bugtraq/2019/Jun/12
cvssv3.1 9.8 https://www.debian.org/security/2019/dsa-4460
generic_textual CRITICAL https://www.debian.org/security/2019/dsa-4460
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2019-12468
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11358
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12466
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12467
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12468
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12469
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12470
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12471
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12472
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12473
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12474
https://github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2019-12468.yaml
https://github.com/wikimedia/mediawiki
https://lists.wikimedia.org/pipermail/mediawiki-announce
https://lists.wikimedia.org/pipermail/mediawiki-announce/
https://lists.wikimedia.org/pipermail/wikitech-l/2019-June/092152.html
https://nvd.nist.gov/vuln/detail/CVE-2019-12468
https://phabricator.wikimedia.org/T197279
https://seclists.org/bugtraq/2019/Jun/12
https://www.debian.org/security/2019/dsa-4460
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:9.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2019-12468.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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://lists.wikimedia.org/pipermail/mediawiki-announce
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://lists.wikimedia.org/pipermail/wikitech-l/2019-June/092152.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:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2019-12468
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2019-12468
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2019-12468
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://phabricator.wikimedia.org/T197279
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://seclists.org/bugtraq/2019/Jun/12
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://www.debian.org/security/2019/dsa-4460
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 0.61197
EPSS Score 0.00423
Published At June 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-01T12:29:15.362087+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-wrhx-3pxr-6vgg/GHSA-wrhx-3pxr-6vgg.json 36.1.3