Overview
- Description
- An issue was discovered in the CheckUser extension for MediaWiki before 1.35.12, 1.36.x through 1.39.x before 1.39.5, and 1.40.x before 1.40.1. A user can use a rest.php/checkuser/v0/useragent-clienthints/revision/ URL to store an arbitrary number of rows in cu_useragent_clienthints, leading to a denial of service.
- Source
- cve@mitre.org
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 6.5
- Impact score
- 3.6
- Exploitability score
- 2.8
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Severity
- MEDIUM
Weaknesses
- nvd@nist.gov
- NVD-CWE-noinfo
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6A920574-0C59-4036-9878-C5A39EF82AA1",
"versionEndExcluding": "1.35.12"
},
{
"criteria": "cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "20B3C0EF-1980-4F24-B0C6-B4BA77562DA3",
"versionEndExcluding": "1.39.5",
"versionStartIncluding": "1.36.0"
},
{
"criteria": "cpe:2.3:a:mediawiki:mediawiki:1.40.0:-:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "195C853F-2D51-44A4-990E-8E04FF4E9AA8"
}
],
"operator": "OR"
}
]
}
]