mediawiki — security advisory
An issue was discovered in includes/page/Article.php in MediaWiki 1.36.x through 1.39.x before 1.39.5 and 1.40.x before 1.40.1. Deleted revision existence is leaked due to incorrect permissions being checked. This reveals that a given revision ID belonged to the given page title, and its timestamp, both of which are not supposed to be public information.
- Products
- mediawiki
- Affected versions
- 1:1.39.2-1, 1:1.39.4-1, 1:1.39.4-1~deb12u1, 1:1.39.4-2
- Fixed versions
- 1:1.39.5-1, 1:1.39.5-1~deb12u1
- CVEs
- CVE-2023-45364
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 15:58 UTC · Revision 1
Source evidence
An issue was discovered in includes/page/Article.php in MediaWiki 1.36.x through 1.39.x before 1.39.5 and 1.40.x before 1.40.1. Deleted revision existence is leaked due to incorrect permissions being checked. This reveals that a given revision ID belonged to the given page title, and its timestamp, both of which are not supposed to be public information.
osv:DEBIAN-CVE-2023-45364
mediawiki
Fixed versions: 1:1.39.5-1~deb12u1
mediawiki
Fixed versions: 1:1.39.5-1
mediawiki
Fixed versions: 1:1.39.5-1
Complete source record
{
"id": "a508f6a9fbd173726411d16c8cbae99d40879fd1b22d65bac86e2d7e367d6ee6",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2023-45364",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2023-45364",
"summary": "An issue was discovered in includes/page/Article.php in MediaWiki 1.36.x through 1.39.x before 1.39.5 and 1.40.x before 1.40.1. Deleted revision existence is leaked due to incorrect permissions being checked. This reveals that a given revision ID belonged to the given page title, and its timestamp, both of which are not supposed to be public information.",
"evidence": "osv:DEBIAN-CVE-2023-45364",
"products": [
{
"name": {
"value": "mediawiki",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:1.39.5-1~deb12u1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": [
{
"value": "1:1.39.2-1",
"evidence": "/affected/0/versions"
},
{
"value": "1:1.39.4-1",
"evidence": "/affected/0/versions"
},
{
"value": "1:1.39.4-1~deb12u1",
"evidence": "/affected/0/versions"
},
{
"value": "1:1.39.4-2",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "mediawiki",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:1.39.5-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "mediawiki",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:1.39.5-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2023-45364",
"aliases": [
"DEBIAN-CVE-2023-45364"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:1.39.5-1~deb12u1"
}
]
}
],
"package": {
"name": "mediawiki",
"purl": "pkg:deb/debian/mediawiki?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"1:1.39.2-1",
"1:1.39.4-1",
"1:1.39.4-1~deb12u1",
"1:1.39.4-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-45364.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:1.39.5-1"
}
]
}
],
"package": {
"name": "mediawiki",
"purl": "pkg:deb/debian/mediawiki?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-45364.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:1.39.5-1"
}
]
}
],
"package": {
"name": "mediawiki",
"purl": "pkg:deb/debian/mediawiki?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-45364.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-26T18:02:33.588105716Z",
"provider": "osv",
"upstream": [
"CVE-2023-45364"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2023-45364"
]
},
"related_cves": [
{
"value": "CVE-2023-45364",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 456249,
"published_at": "2023-10-09T05:15:09.3+00:00"
}