CVE-2025-50579

MediumCVSS 5.3/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Aug 19, 2025
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2025-50579: Medium severity, CVSS 5.3 | Vulnix