CVE-2023-50463

Name: CVE-2023-50463
Creator: NVD / NIST
Published: 2023-12-10T23:15:07.247+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.66%

Last modified Jun 17, 2026

CVE-2023-50463 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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).. EPSS estimates a 0.66% chance of exploitation in the next 30 days.

Description

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).

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

EPSS Probability

0.66%

46.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-290

Affected Software

Vendor	Product	Versions
Caddyserver	Caddy	<= 0.6.0

References

https://caddyserver.com/v2Broken Link
https://github.com/shift72/caddy-geo-ip/issues/4Third Party Advisory
https://github.com/shift72/caddy-geo-ip/tagsRelease Notes
https://caddyserver.com/v2Broken Link
https://github.com/shift72/caddy-geo-ip/issues/4Third Party Advisory
https://github.com/shift72/caddy-geo-ip/tagsRelease Notes

Timeline

Published: Dec 10, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-50463?

How severe is CVE-2023-50463?

CVE-2023-50463 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.66% probability of exploitation in the next 30 days.

How do I fix CVE-2023-50463?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-50463?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST