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Vulnerability details: VCID-w3f8-nrqd-p7gq
Vulnerability ID VCID-w3f8-nrqd-p7gq
Aliases CVE-2018-0504
GHSA-hr8v-f4g2-p66f
Summary Mediawiki information disclosure vulnerability Mediawiki 1.31 before 1.31.1, 1.30.1, 1.29.3 and 1.27.5 contains an information disclosure flaw in the Special:Redirect/logid
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-532 Insertion of Sensitive Information into Log File
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
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
System Score Found at
cvssv3.1 6.5 https://access.redhat.com/errata/RHSA-2019:3238
generic_textual MODERATE https://access.redhat.com/errata/RHSA-2019:3238
cvssv3.1 6.5 https://access.redhat.com/errata/RHSA-2019:3813
generic_textual MODERATE https://access.redhat.com/errata/RHSA-2019:3813
cvssv3 4.4 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-0504.json
epss 0.01531 https://api.first.org/data/v1/epss?cve=CVE-2018-0504
epss 0.01531 https://api.first.org/data/v1/epss?cve=CVE-2018-0504
epss 0.01531 https://api.first.org/data/v1/epss?cve=CVE-2018-0504
epss 0.01531 https://api.first.org/data/v1/epss?cve=CVE-2018-0504
epss 0.01612 https://api.first.org/data/v1/epss?cve=CVE-2018-0504
epss 0.01612 https://api.first.org/data/v1/epss?cve=CVE-2018-0504
epss 0.01612 https://api.first.org/data/v1/epss?cve=CVE-2018-0504
epss 0.01612 https://api.first.org/data/v1/epss?cve=CVE-2018-0504
epss 0.01612 https://api.first.org/data/v1/epss?cve=CVE-2018-0504
epss 0.01612 https://api.first.org/data/v1/epss?cve=CVE-2018-0504
epss 0.01612 https://api.first.org/data/v1/epss?cve=CVE-2018-0504
epss 0.01612 https://api.first.org/data/v1/epss?cve=CVE-2018-0504
epss 0.01612 https://api.first.org/data/v1/epss?cve=CVE-2018-0504
epss 0.01612 https://api.first.org/data/v1/epss?cve=CVE-2018-0504
epss 0.01612 https://api.first.org/data/v1/epss?cve=CVE-2018-0504
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-hr8v-f4g2-p66f
cvssv3.1 6.5 https://github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2018-0504.yaml
generic_textual MODERATE https://github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2018-0504.yaml
cvssv3.1 6.5 https://github.com/wikimedia/mediawiki
generic_textual MODERATE https://github.com/wikimedia/mediawiki
cvssv3.1 6.5 https://lists.wikimedia.org/pipermail/wikitech-l/2018-September/090849.html
generic_textual MODERATE https://lists.wikimedia.org/pipermail/wikitech-l/2018-September/090849.html
cvssv3.1 6.5 https://nvd.nist.gov/vuln/detail/CVE-2018-0504
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2018-0504
cvssv3.1 6.5 https://phabricator.wikimedia.org/T187638
generic_textual MODERATE https://phabricator.wikimedia.org/T187638
cvssv3.1 6.5 https://www.debian.org/security/2018/dsa-4301
generic_textual MODERATE https://www.debian.org/security/2018/dsa-4301
cvssv3.1 6.5 http://www.securitytracker.com/id/1041695
generic_textual MODERATE http://www.securitytracker.com/id/1041695
Reference id Reference type URL
https://access.redhat.com/errata/RHSA-2019:3238
https://access.redhat.com/errata/RHSA-2019:3813
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-0504.json
https://api.first.org/data/v1/epss?cve=CVE-2018-0504
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0503
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0504
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0505
https://github.com/wikimedia/mediawiki
https://lists.wikimedia.org/pipermail/wikitech-l/2018-September/090849.html
https://phabricator.wikimedia.org/T187638
https://www.debian.org/security/2018/dsa-4301
http://www.securitytracker.com/id/1041695
1634168 https://bugzilla.redhat.com/show_bug.cgi?id=1634168
CVE-2018-0504 https://nvd.nist.gov/vuln/detail/CVE-2018-0504
CVE-2018-0504.YAML https://github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2018-0504.yaml
GHSA-hr8v-f4g2-p66f https://github.com/advisories/GHSA-hr8v-f4g2-p66f
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Found at https://access.redhat.com/errata/RHSA-2019:3238
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:L/UI:N/S:U/C:H/I:N/A:N Found at https://access.redhat.com/errata/RHSA-2019:3813
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:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-0504.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:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Found at https://github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2018-0504.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:L/UI:N/S:U/C:H/I:N/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:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Found at https://lists.wikimedia.org/pipermail/wikitech-l/2018-September/090849.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:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2018-0504
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:L/UI:N/S:U/C:H/I:N/A:N Found at https://phabricator.wikimedia.org/T187638
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:L/UI:N/S:U/C:H/I:N/A:N Found at https://www.debian.org/security/2018/dsa-4301
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:L/UI:N/S:U/C:H/I:N/A:N Found at http://www.securitytracker.com/id/1041695
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 0.81353
EPSS Score 0.01531
Published At April 21, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T12:50:14.356091+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/packagist/mediawiki/core/CVE-2018-0504.yml 38.0.0