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…

PriorityP430medium5.3CVSS 3.1

AVNACLPRNUINSUCLINAN

EPSS

0.36%

27.5th percentile

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 tokens using a simple browser script and exfiltrate them to a remote attacker-controlled server, potentially leading to unauthorized actions within the application.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
jc21	nginx_proxy_manager	—	—

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