CVE-2020-8138 is a Server-Side Request Forgery (SSRF) vulnerability affecting Nextcloud Server versions prior to 17.0.1, 16.0.7, and 15.0.14. This flaw stems from a missing check for IPv4 addresses nested within IPv6 in calendar subscription URLs. Rated 6.5 MEDIUM, the vulnerability can be exploited over the network with low attack complexity and no user interaction, potentially leading to high confidentiality impact by allowing an authenticated attacker to access internal network resources. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 15.0.14CPE matchmatch criteria | cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:* | ||
>= 16.0.0, < 16.0.7CPE matchmatch criteria | cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:* | ||
>= 17.0.0, < 17.0.2CPE matchmatch criteria | cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.