CVE-2023-45362 json
An issue was discovered in DifferenceEngine.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.
published 2023-11-03 3 y ago modified 2026-06-17 4 mo ago also BIT-mediawiki-2023-45362 , EUVD-2023-49655
- cvss
- 4.3
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 56%
- public exploits
- 0
- none known
Summary
An issue was discovered in DifferenceEngine.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. diff-multi-sameuser (aka "X intermediate revisions by the same user not shown") ignores username suppression. This is an information leak.
Patch / fix
- bitnami mediawiki 1.35.12, 1.39.5, 1.40.1
- mediawiki mediawiki 1.35.12, 1.39.5
- mediawiki Debian 12 1:1.39.5-1~deb12u1
- mediawiki Debian 14, Debian 13 1:1.39.5-1
debian advisories DEBIAN-CVE-2023-45362
- phabricator.wikimedia.org/T341529 advisory
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2023-45362 updated
mediawiki: diff-multi-sameuser ("X intermediate revisions by the same user not shown") ignores username suppression
-
Red Hat OpenShift Container Platform 3.11 mediawikiaffected: no fix planned “Out of support scope”
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Exploit prediction
0.78% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- phabricator.wikimedia.org https://phabricator.wikimedia.org/T341529 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| OSV | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | mediawiki | <1.35.12 >=1.36.0, <1.39.5 >=1.40.0, <1.40.1 |
1.35.12 1.39.5 1.40.1 |
References
-
phabricator.wikimedia.org
/T341529
exploit, issue-tracking, patch, vendor-advisory, web
-
lists.fedoraproject.org
/archives/list/package-announce%40lists.fedoraproject.org/message/FU2FGUXXK6TMV6R52VRECLC6XCSQQISY/
vendor-advisory, web
-
lists.debian.org
/debian-lts-announce/2023/11/msg00027.html
mailing-list, web
-
lists.fedoraproject.org
/archives/list/package-announce@lists.fedoraproject.org/message/FU2FGUXXK6TMV6R52VRECLC6XCSQQISY/
web
-
nvd.nist.gov
/vuln/detail/CVE-2023-45362
web
Sources
- CVE List CVE-2023-45362
- NVD CVE-2023-45362
- OSV BIT-mediawiki-2023-45362
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.