CVE-2021-22878
CVSS V2 Low 3.5
CVSS V3 Medium 4.8
Description
Nextcloud Server prior to 20.0.6 is vulnerable to reflected cross-site scripting (XSS) due to lack of sanitization in `OC.Notification.show`.
Overview
- CVE ID
- CVE-2021-22878
- Assigner
- support@hackerone.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-03-03T18:15:14
- Last Modified Date
- 2022-01-01T18:02:13
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:* | 1 | OR | 20.0.6 | |
| cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | 1 | OR |
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:H/UI:R/S:C/C:L/I:L/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- HIGH
- User Interaction
- REQUIRED
- Scope
- CHANGED
- Confidentiality Impact
- LOW
- Availability Impact
- NONE
- Base Score
- 4.8
- Base Severity
- MEDIUM
- Exploitability Score
- 1.7
- Impact Score
- 2.7
References
| Reference URL | Reference Tags |
|---|---|
| https://github.com/nextcloud/server/pull/25234 | Patch Third Party Advisory |
| https://nextcloud.com/security/advisory/?id=NC-SA-2021-005 | Vendor Advisory |
| https://hackerone.com/reports/896522 | Exploit Issue Tracking Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L6BO6P6MP2MOWA6PZRXX32PLWPXN5O4S/ | Mailing List Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-22878 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-22878 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:39:50 | Added to TrackCVE | |||
| 2022-12-05 23:04:46 | cve-assignments@hackerone.com | support@hackerone.com | CVE Assigner | updated |
| 2022-12-05 23:04:46 | 2021-03-03T18:15Z | 2021-03-03T18:15:14 | CVE Published Date | updated |
| 2022-12-05 23:04:46 | 2022-01-01T18:02:13 | CVE Modified Date | updated | |
| 2022-12-05 23:04:46 | Analyzed | Vulnerability Status | updated |