Vulnerability in Caddyserver Caddy
CVE-2023-50463
The caddy-geo-ip (aka GeoIP) middleware through 0.6.0 for Caddy 2, when trust_header X-Forwarded-For is used, allows attackers to spoof their source IP address via an X-Forwarded-For header, which may bypass a protection mechanism (trusted_proxy directive in reverse_proxy or IP address range restrictions).
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.007 (50.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 50.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/shift72/caddy-geo-ip/issues/4 (Third Party Advisory)
- github.com/shift72/caddy-geo-ip/tags (Release Notes)
- caddyserver.com/v2 (Broken Link)
Frequently asked questions
- What is CVE-2023-50463?
- CVE-2023-50463 is a medium-severity vulnerability in Caddyserver Caddy, classified under Authentication Bypass by Spoofing. CVSS score: 6.5/10. Published 2023-12-10.
- How severe is CVE-2023-50463?
- Medium severity. CVSS v3 base score is 6.5 out of 10.