CVE-2021-39221
CVSS V2 Low 3.5
CVSS V3 Medium 5.4
Description
Nextcloud is an open-source, self-hosted productivity platform. The Nextcloud Contacts application prior to version 4.0.3 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 Contacts application is upgraded to 4.0.3. As a workaround, one may use a browser that has support for Content-Security-Policy.
Overview
- CVE ID
- CVE-2021-39221
- Assigner
- security-advisories@github.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-10-25T19:15:09
- Last Modified Date
- 2021-10-27T15:09:28
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:nextcloud:contacts:*:*:*:*:*:*:*:* | 1 | OR | 4.0.3 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:S/C:N/I:P/A:N
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- SINGLE
- Confidentiality Impact
- NONE
- Integrity Impact
- PARTIAL
- Availability Impact
- NONE
- Base Score
- 3.5
- Severity
- LOW
- Exploitability Score
- 6.8
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- REQUIRED
- Scope
- CHANGED
- Confidentiality Impact
- LOW
- Availability Impact
- NONE
- Base Score
- 5.4
- Base Severity
- MEDIUM
- Exploitability Score
- 2.3
- Impact Score
- 2.7
References
| Reference URL | Reference Tags |
|---|---|
| https://github.com/nextcloud/security-advisories/security/advisories/GHSA-j6cx-mxqf-f9vc | Third Party Advisory |
| https://github.com/nextcloud/contacts/pull/2407 | Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-39221 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39221 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:49:33 | Added to TrackCVE | |||
| 2022-12-05 13:14:41 | 2021-10-25T19:15Z | 2021-10-25T19:15:09 | CVE Published Date | updated |
| 2022-12-05 13:14:41 | 2021-10-27T15:09:28 | CVE Modified Date | updated | |
| 2022-12-05 13:14:41 | Analyzed | Vulnerability Status | updated |