CVE Vulnerability

CVE-2022-24838

Nextcloud Calendar is a calendar application for the nextcloud framework. SMTP Command Injection in Appointment Emails via Newlines: as newlines and special characters are not sanitized in the email value in the JSON request, a malicious attacker can inject newlines to break out of the `RCPT TO: ` SMTP command and begin injecting arbitrary SMTP commands. It is recommended that Calendar is upgraded to 3.2.2. There are no workaround available.

7.5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

9.8 /10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/nextcloud/calendar/pull/4073 Patch Third Party Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8xv5-4855-24qf Third Party Advisory
https://github.com/nextcloud/calendar/commit/7b70edfb8a0fcf0926f613ababcbd56c6ecd9f35 Patch Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:nextcloud:calendar:*:*:*:*:*:*:*:*
Information

Published : 2022-04-11 09:15

Updated : 2022-04-19 03:32

NVD link : CVE-2022-24838

Mitre link : CVE-2022-24838

Products Affected
No products.
CWE
CWE-77