Vulnerability in Jc21 Nginx_proxy_manager
CVE-2025-50579
A CORS misconfiguration in Nginx Proxy Manager v2.12.3 allows unauthorized domains to access sensitive data, particularly JWT tokens, due to improper validation of the Origin header. This misconfiguration enables attackers to intercept tok…
EPSS: 0.004 (30.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Jc21 Nginx_proxy_manager — versions 2.12.3
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Product)
- cve@mitre.org (Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-50579?
- CVE-2025-50579 is a medium-severity vulnerability in Jc21 Nginx_proxy_manager, classified under CWE-1259. CVSS score: 5.3/10. Published 2025-08-19.
- How severe is CVE-2025-50579?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2025-50579 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.