medium5.3
CVE-2022-24838
Nextcloud Calendar is a calendar application for the nextcloud framework.
Impact
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:<BOOKING USER'S EMAIL> ` SMTP command and begin injecting arbitrary SMTP commands. It is recommended that Calendar is upgraded to 3.2.2. There are no workaround available.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Nextcloud | Calendar | before 3.2.2 |
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/nextcloud/calendar/commit/7b70edfb8a0fcf0926f613ababcbd56c6ecd9f35
- https://github.com/nextcloud/calendar/pull/4073
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8xv5-4855-24qf
- https://github.com/nextcloud/calendar/commit/7b70edfb8a0fcf0926f613ababcbd56c6ecd9f35
- https://github.com/nextcloud/calendar/pull/4073
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8xv5-4855-24qf