CVE-2023-48307 is a critical Server-Side Request Forgery (SSRF) vulnerability affecting Nextcloud Mail app versions 1.13.0 through 2.2.7 and 3.0.0 through 3.2.x. An unauthenticated attacker can exploit an unprotected endpoint to perform arbitrary requests, leading to full compromise of confidentiality, integrity, and availability. With a CVSS score of 9.8 (CRITICAL), this vulnerability is easily exploitable over the network with low attack complexity and no user interaction. While there is no evidence of active exploitation, public exploit code, or significant community discussion, immediate patching to versions 2.2.8 or 3.3.0, or disabling the Mail app, is strongly recommended.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 1.13.0, < 2.2.8CPE matchmatch criteria | cpe:2.3:a:nextcloud:mail:*:*:*:*:*:*:*:* | ||
>= 3.0.0, < 3.3.0CPE matchmatch criteria | cpe:2.3:a:nextcloud:mail:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L
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The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.