CVE-2023-45660
mediumpriority · track · 17EPSS 0.008 · 55 %ileEUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (4)
Products and version ranges known to be affected.
also known as (2)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (10)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2023-45660/cnnvd
- https://github.com/nextcloud/mail/pull/8459cnnvd
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8j9x-fmww-qr37cnnvd
- https://hackerone.com/reports/1895874cnnvd
- https://github.com/nextcloud/mail/pull/8459enisa_euvd
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8j9x-fmww-qr37enisa_euvd
- https://hackerone.com/reports/1895874enisa_euvd
- https://github.com/nextcloud/mail/pull/8459Issue TrackingPatchnvd
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