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Add CVE-2021-41252 for GHSA-x7j7-qp7j-hw3q

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Add CVE-2021-41252 for GHSA-x7j7-qp7j-hw3q
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advisory-db[bot] 2021-11-16 18:03:52 +00:00 committed by GitHub
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commit 9077d5e680
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2021/41xxx/CVE-2021-41252.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-2021-41252",
"ASSIGNER": "cve@mitre.org",
"STATE": "RESERVED"
"STATE": "PUBLIC",
"TITLE": "Cross-site scripting (XSS) from writer field content in the site frontend"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "kirby",
"version": {
"version_data": [
{
"version_value": ">= 3.5.0, < 3.5.8"
}
]
}
}
]
},
"vendor_name": "getkirby"
}
]
}
},
"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": "Kirby is an open source file structured CMS\n### Impact\n\nKirby's writer field stores its formatted content as HTML code. Unlike with other field types, it is not possible to escape HTML special characters against cross-site scripting (XSS) attacks, otherwise the formatting would be lost. If the user is logged in to the Panel, a harmful script can for example trigger requests to Kirby's API with the permissions of the victim. Because the writer field did not securely sanitize its contents on save, it was possible to inject malicious HTML code into the content file by sending it to Kirby's API directly without using the Panel. This malicious HTML code would then be displayed on the site frontend and executed in the browsers of site visitors and logged in users who are browsing the site. Attackers must be in your group of authenticated Panel users in order to exploit this weakness. Users who do not make use of the writer field are not affected. This issue has been patched in Kirby 3.5.8 by sanitizing all writer field contents on the backend whenever the content is modified via Kirby's API. Please update to this or a later version to fix the vulnerability."
}
]
},
"impact": {
"cvss": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.3,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/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/getkirby/kirby/security/advisories/GHSA-x7j7-qp7j-hw3q",
"refsource": "CONFIRM",
"url": "https://github.com/getkirby/kirby/security/advisories/GHSA-x7j7-qp7j-hw3q"
},
{
"name": "https://github.com/getkirby/kirby/commit/25fc5c6b330442e6433c99befc688f3698c5d1fc",
"refsource": "MISC",
"url": "https://github.com/getkirby/kirby/commit/25fc5c6b330442e6433c99befc688f3698c5d1fc"
},
{
"name": "https://github.com/getkirby/kirby/releases/tag/3.5.8",
"refsource": "MISC",
"url": "https://github.com/getkirby/kirby/releases/tag/3.5.8"
}
]
},
"source": {
"advisory": "GHSA-x7j7-qp7j-hw3q",
"discovery": "UNKNOWN"
}
}