CVE-2023-45660

medium

Description

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.

References

https://hackerone.com/reports/1895874

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8j9x-fmww-qr37

https://github.com/nextcloud/mail/pull/8459

Details

Source: Mitre, NVD

Published: 2023-10-16

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 4

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 4.3

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Severity: Medium

EPSS

EPSS: 0.00145