Overview
- Description
- The ScratchSig extension for MediaWiki before version 1.0.1 allows stored Cross-Site Scripting. Using <script> tag inside <scratchsig> tag, attackers with edit permission can execute scripts on visitors' browser. With MediaWiki JavaScript API, this can potentially lead to privilege escalation and/or account takeover. This has been patched in release 1.0.1. This has already been deployed to all Scratch Wikis. No workarounds exist other than disabling the extension completely.
- Source
- security-advisories@github.com
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 9
- Impact score
- 6
- Exploitability score
- 2.3
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
- Severity
- CRITICAL
CVSS 2.0
- Type
- Primary
- Base score
- 4.6
- Impact score
- 6.4
- Exploitability score
- 3.9
- Vector string
- AV:N/AC:H/Au:S/C:P/I:P/A:P
Weaknesses
- security-advisories@github.com
- CWE-79
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:scratch-wiki:scratchsig:*:*:*:*:*:mediawiki:*:*",
"vulnerable": true,
"matchCriteriaId": "B2D24ECE-BEF9-49F9-ABCD-61C5052BBCFE",
"versionEndExcluding": "1.0.1"
}
],
"operator": "OR"
}
]
}
]