XSS in Greenpau Caddy-Security

CVE-2024-21494

All versions of the package github.com/greenpau/caddy-security are vulnerable to Authentication Bypass by Spoofing via the X-Forwarded-For header due to improper input sanitization. An attacker can spoof an IP address used in the user identity module (/whoami API endpoint). This could lead to unauthorized access if the system trusts this spoofed IP address.

EPSS: 0.005 (41.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-21494?
CVE-2024-21494 is a medium-severity vulnerability in Greenpau Caddy-Security, classified under Authentication Bypass by Spoofing. CVSS score: 5.4/10. Published 2024-02-17.
How severe is CVE-2024-21494?
Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2024-21494 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.