Search for vulnerabilities
Vulnerability details: VCID-15pn-z816-zbb6
Vulnerability ID VCID-15pn-z816-zbb6
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 0.09034 https://api.first.org/data/v1/epss?cve=CVE-2023-45363
epss 0.09034 https://api.first.org/data/v1/epss?cve=CVE-2023-45363
epss 0.09034 https://api.first.org/data/v1/epss?cve=CVE-2023-45363
epss 0.09034 https://api.first.org/data/v1/epss?cve=CVE-2023-45363
epss 0.09034 https://api.first.org/data/v1/epss?cve=CVE-2023-45363
epss 0.09034 https://api.first.org/data/v1/epss?cve=CVE-2023-45363
epss 0.09034 https://api.first.org/data/v1/epss?cve=CVE-2023-45363
epss 0.09034 https://api.first.org/data/v1/epss?cve=CVE-2023-45363
epss 0.09034 https://api.first.org/data/v1/epss?cve=CVE-2023-45363
epss 0.11405 https://api.first.org/data/v1/epss?cve=CVE-2023-45363
epss 0.11405 https://api.first.org/data/v1/epss?cve=CVE-2023-45363
epss 0.11405 https://api.first.org/data/v1/epss?cve=CVE-2023-45363
epss 0.11405 https://api.first.org/data/v1/epss?cve=CVE-2023-45363
epss 0.11405 https://api.first.org/data/v1/epss?cve=CVE-2023-45363
epss 0.11405 https://api.first.org/data/v1/epss?cve=CVE-2023-45363
epss 0.11405 https://api.first.org/data/v1/epss?cve=CVE-2023-45363
epss 0.11405 https://api.first.org/data/v1/epss?cve=CVE-2023-45363
epss 0.11405 https://api.first.org/data/v1/epss?cve=CVE-2023-45363
epss 0.11405 https://api.first.org/data/v1/epss?cve=CVE-2023-45363
epss 0.11405 https://api.first.org/data/v1/epss?cve=CVE-2023-45363
epss 0.11405 https://api.first.org/data/v1/epss?cve=CVE-2023-45363
epss 0.11405 https://api.first.org/data/v1/epss?cve=CVE-2023-45363
epss 0.11405 https://api.first.org/data/v1/epss?cve=CVE-2023-45363
epss 0.11405 https://api.first.org/data/v1/epss?cve=CVE-2023-45363
epss 0.11405 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
generic_textual HIGH https://github.com/wikimedia/mediawiki
cvssv3.1 7.5 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
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
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2023-45363
cvssv3.1 7.5 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
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://nvd.nist.gov/vuln/detail/CVE-2023-45363
https://phabricator.wikimedia.org/T333050
https://www.debian.org/security/2023/dsa-5520
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:a:mediawiki:mediawiki:1.40.0:-:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mediawiki:mediawiki:1.40.0:-:*:*:*:*:*:*
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:12.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*
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)

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: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)

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: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)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
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

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: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

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
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

high

low

none

high

low

none

high

low

none
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 0.92306
EPSS Score 0.09034
Published At Sept. 9, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:40:37.306422+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/10/GHSA-w5fx-cx7f-6vr9/GHSA-w5fx-cx7f-6vr9.json 37.0.0