Overview
- Description
- Nextcloud is an open-source, self-hosted productivity platform. The Nextcloud Talk application was vulnerable to a stored Cross-Site Scripting (XSS) vulnerability. For exploitation, a user would need to right-click on a malicious file and open the file in a new tab. Due the strict Content-Security-Policy shipped with Nextcloud, this issue is not exploitable on modern browsers supporting Content-Security-Policy. It is recommended that the Nextcloud Talk application is upgraded to patched versions 10.0.7, 10.1.4, 11.1.2, 11.2.0 or 12.0.0. As a workaround, use a browser that has support for Content-Security-Policy.
- Source
- security-advisories@github.com
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 6.1
- Impact score
- 2.7
- Exploitability score
- 2.8
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Severity
- MEDIUM
CVSS 2.0
- Type
- Primary
- Base score
- 4.3
- Impact score
- 2.9
- Exploitability score
- 8.6
- Vector string
- AV:N/AC:M/Au:N/C:N/I:P/A:N
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:nextcloud:talk:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6D48B927-D0DB-4981-AE40-3084AB7646B1",
"versionEndExcluding": "10.0.7"
},
{
"criteria": "cpe:2.3:a:nextcloud:talk:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B64ECEAF-FA2E-42E0-AE30-3BB1C0C835FA",
"versionEndExcluding": "10.1.4",
"versionStartIncluding": "10.1.0"
},
{
"criteria": "cpe:2.3:a:nextcloud:talk:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "BE3F28FB-17E4-43F1-AFE1-2BA9FC1FAB9B",
"versionEndExcluding": "11.1.2",
"versionStartIncluding": "11.0.0"
}
],
"operator": "OR"
}
]
}
]