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Vulnerability details: VCID-jm7q-2w3j-buhh
Vulnerability ID VCID-jm7q-2w3j-buhh
Aliases CVE-2023-45363
GHSA-w5fx-cx7f-6vr9
Summary MediaWiki Denial of Service vulnerability An issue was discovered in ApiPageSet.php in MediaWiki before 1.35.12, 1.36.x through 1.39.x before 1.39.5, and 1.40.x before 1.40.1. It allows attackers to cause a denial of service (unbounded loop and RequestTimeoutException) when querying pages redirected to other variants with redirects and converttitles set.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')
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
epss 0.11025 https://api.first.org/data/v1/epss?cve=CVE-2023-45363
epss 0.11025 https://api.first.org/data/v1/epss?cve=CVE-2023-45363
epss 0.11025 https://api.first.org/data/v1/epss?cve=CVE-2023-45363
epss 0.11025 https://api.first.org/data/v1/epss?cve=CVE-2023-45363
epss 0.11025 https://api.first.org/data/v1/epss?cve=CVE-2023-45363
epss 0.11025 https://api.first.org/data/v1/epss?cve=CVE-2023-45363
epss 0.11025 https://api.first.org/data/v1/epss?cve=CVE-2023-45363
epss 0.11025 https://api.first.org/data/v1/epss?cve=CVE-2023-45363
epss 0.11025 https://api.first.org/data/v1/epss?cve=CVE-2023-45363
epss 0.11025 https://api.first.org/data/v1/epss?cve=CVE-2023-45363
epss 0.11025 https://api.first.org/data/v1/epss?cve=CVE-2023-45363
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-w5fx-cx7f-6vr9
cvssv3.1 7.5 https://github.com/wikimedia/mediawiki
cvssv4 8.7 https://github.com/wikimedia/mediawiki
generic_textual HIGH https://github.com/wikimedia/mediawiki
cvssv3.1 7.5 https://github.com/wikimedia/mediawiki/commit/24c3ef2474c6daa20ed48168d46196a55346dfd8
cvssv4 8.7 https://github.com/wikimedia/mediawiki/commit/24c3ef2474c6daa20ed48168d46196a55346dfd8
generic_textual HIGH https://github.com/wikimedia/mediawiki/commit/24c3ef2474c6daa20ed48168d46196a55346dfd8
cvssv3.1 7.5 https://lists.debian.org/debian-lts-announce/2023/11/msg00027.html
cvssv4 8.7 https://lists.debian.org/debian-lts-announce/2023/11/msg00027.html
generic_textual HIGH https://lists.debian.org/debian-lts-announce/2023/11/msg00027.html
ssvc Track https://lists.debian.org/debian-lts-announce/2023/11/msg00027.html
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2023-45363
cvssv4 8.7 https://nvd.nist.gov/vuln/detail/CVE-2023-45363
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2023-45363
cvssv3.1 7.5 https://phabricator.wikimedia.org/T333050
cvssv4 8.7 https://phabricator.wikimedia.org/T333050
generic_textual HIGH https://phabricator.wikimedia.org/T333050
ssvc Track https://phabricator.wikimedia.org/T333050
cvssv3.1 7.5 https://www.debian.org/security/2023/dsa-5520
cvssv4 8.7 https://www.debian.org/security/2023/dsa-5520
generic_textual HIGH https://www.debian.org/security/2023/dsa-5520
ssvc Track https://www.debian.org/security/2023/dsa-5520
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2023-45363
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-3550
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-45360
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-45362
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-45363
https://github.com/wikimedia/mediawiki
https://github.com/wikimedia/mediawiki/commit/24c3ef2474c6daa20ed48168d46196a55346dfd8
https://lists.debian.org/debian-lts-announce/2023/11/msg00027.html
https://phabricator.wikimedia.org/T333050
https://www.debian.org/security/2023/dsa-5520
CVE-2023-45363 https://nvd.nist.gov/vuln/detail/CVE-2023-45363
GHSA-w5fx-cx7f-6vr9 https://github.com/advisories/GHSA-w5fx-cx7f-6vr9
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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)

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://github.com/wikimedia/mediawiki
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/wikimedia/mediawiki/commit/24c3ef2474c6daa20ed48168d46196a55346dfd8
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://github.com/wikimedia/mediawiki/commit/24c3ef2474c6daa20ed48168d46196a55346dfd8
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://lists.debian.org/debian-lts-announce/2023/11/msg00027.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://lists.debian.org/debian-lts-announce/2023/11/msg00027.html
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2024-10-15T17:28:57Z/ Found at https://lists.debian.org/debian-lts-announce/2023/11/msg00027.html
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2023-45363
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

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physical

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://nvd.nist.gov/vuln/detail/CVE-2023-45363
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://phabricator.wikimedia.org/T333050
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

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unchanged

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://phabricator.wikimedia.org/T333050
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2024-10-15T17:28:57Z/ Found at https://phabricator.wikimedia.org/T333050
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://www.debian.org/security/2023/dsa-5520
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

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low

none

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://www.debian.org/security/2023/dsa-5520
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

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Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2024-10-15T17:28:57Z/ Found at https://www.debian.org/security/2023/dsa-5520
Exploit Prediction Scoring System (EPSS)
Percentile 0.93407
EPSS Score 0.11025
Published At April 2, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T12:51:54.854630+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/packagist/mediawiki/core/CVE-2023-45363.yml 38.0.0