CVE-2025-50579

MEDIUM
STIX 2.1 vulnerability

Record summary

CVE-2025-50579 has a selected CVSS score of 5.3 (medium).

Description

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.

Description source: CVE List

Exploitation context

CISA SSVC decision

ExploitationPoC
AutomatableNo
Technical impactPartial

CISA Coordinator · SSVC 2.0.3 · Evaluated Aug 19, 2025 · Source: CVE List

References

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