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.

• CWE-918

• https://github.com/nextcloud/mail/pull/8459Issue Tracking, Patch
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8j9x-fmww-qr37Vendor Advisory
• https://hackerone.com/reports/1895874Third Party Advisory
• https://github.com/nextcloud/mail/pull/8459Issue Tracking, Patch
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8j9x-fmww-qr37Vendor Advisory
• https://hackerone.com/reports/1895874Third Party Advisory

Published

Oct 16, 2023

Last Modified

Jun 17, 2026

Status

Modified

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