SSRF in Nextcloud Mail
CVE-2023-45660
Nextcloud mail is an email app for the Nextcloud home server platform. In affected versions a missing check of origin, target and cookies allows for an attacker to abuse the proxy endpoint to denial of service a third server. It is recommended that the Nextcloud Mail is upgraded to 2.2.8 or 3.3.0. There are no known workarounds for this vulnerability.
Vulnerability class: SSRF (Server-Side Request Forgery)
EPSS: 0.006 (45.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
Affected products
- Nextcloud Mail
- Nextcloud Security-advisories — versions >= 2.0.0, < 2.2.8, >= 3.0.0, < 3.3.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2023-45660?
- CVE-2023-45660 is a medium-severity vulnerability in Nextcloud Mail, classified under Server-Side Request Forgery (SSRF). CVSS score: 4.3/10. Published 2023-10-16.
- How severe is CVE-2023-45660?
- Medium severity. CVSS v3 base score is 4.3 out of 10.