CVE-2023-48307
Starting in version 1.13.0 and prior to version 2.2.8 and 3.3.0, an attacker can use an unprotected endpoint in the Mail app to perform a SSRF attack.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.87%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Nextcloud Mail is the mail app for Nextcloud, a self-hosted productivity platform. Starting in version 1.13.0 and prior to version 2.2.8 and 3.3.0, an attacker can use an unprotected endpoint in the Mail app to perform a SSRF attack. Nextcloud Mail app versions 2.2.8 and 3.3.0 contain a patch for this issue. As a workaround, disable the mail app.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.87% probability · 57th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-918
- Affected
- nextcloud/mail
- Source
- security-advisories@github.com
References
- https://github.com/nextcloud/mail/pull/8709Issue Tracking, Patch
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-4pp4-m8ph-2999Vendor Advisory
- https://hackerone.com/reports/1869714Permissions Required
- https://github.com/nextcloud/mail/pull/8709Issue Tracking, Patch
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-4pp4-m8ph-2999Vendor Advisory
- https://hackerone.com/reports/1869714Permissions Required
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.