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Auto-merge PR#3878

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Auto-merge PR#3878
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CVE Team 2021-12-27 13:05:23 -05:00 committed by GitHub
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2021/43xxx/CVE-2021-43856.json
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{
"data_type": "CVE",
"data_format": "MITRE",
"data_version": "4.0",
"CVE_data_meta": {
"ASSIGNER": "security-advisories@github.com",
"ID": "CVE-2021-43856",
"ASSIGNER": "cve@mitre.org",
"STATE": "RESERVED"
"STATE": "PUBLIC",
"TITLE": "Stored XSS in non-image uploads in Requarks/wiki"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "wiki",
"version": {
"version_data": [
{
"version_value": "< 2.5.264"
}
]
}
}
]
},
"vendor_name": "Requarks"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided."
"value": "Wiki.js is a wiki app built on Node.js. Wiki.js 2.5.263 and earlier is vulnerable to stored cross-site scripting through non-image file uploads for file types that can be viewed directly inline in the browser. By creating a malicious file which can execute inline JS when viewed in the browser (e.g. XML files), a malicious Wiki.js user may stage a stored cross-site scripting attack. This allows the attacker to execute malicious JavaScript when the file is viewed directly by other users. The file must be opened directly by the user and will not trigger directly in a normal Wiki.js page. A patch in version 2.5.264 fixes this vulnerability by adding an optional (enabled by default) force download flag to all non-image file types, preventing the file from being viewed inline in the browser. As a workaround, disable file upload for all non-trusted users.\n\n---\n\nThanks to @Haxatron for reporting this vulnerability.\nInitially reported via https://huntr.dev/bounties/266bff09-00d9-43ca-a4bb-bb540642811f/"
}
]
},
"impact": {
"cvss": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 8.2,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/Requarks/wiki/security/advisories/GHSA-rhpf-929m-7fm2",
"refsource": "CONFIRM",
"url": "https://github.com/Requarks/wiki/security/advisories/GHSA-rhpf-929m-7fm2"
},
{
"name": "https://github.com/Requarks/wiki/commit/79bdd4409316adf649806de3e22352297f85cee0",
"refsource": "MISC",
"url": "https://github.com/Requarks/wiki/commit/79bdd4409316adf649806de3e22352297f85cee0"
},
{
"name": "https://github.com/Requarks/wiki/releases/tag/2.5.264",
"refsource": "MISC",
"url": "https://github.com/Requarks/wiki/releases/tag/2.5.264"
}
]
},
"source": {
"advisory": "GHSA-rhpf-929m-7fm2",
"discovery": "UNKNOWN"
}
}