CVE Vulnerability

CVE-2021-22878

Nextcloud Server prior to 20.0.6 is vulnerable to reflected cross-site scripting (XSS) due to lack of sanitization in `OC.Notification.show`.

3.5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 6.8 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

4.8 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.7 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References
Link Resource
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
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L6BO6P6MP2MOWA6PZRXX32PLWPXN5O4S/ Mailing List Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
Information

Published : 2021-03-03 06:15

Updated : 2022-01-01 06:02

NVD link : CVE-2021-22878

Mitre link : CVE-2021-22878

Products Affected
No products.
CWE
CWE-79