HOMEVULNERABILITIESCVE-2025-50579
MEDIUM

CVE-2025-50579

CWE-1259Published: August 19, 2025· Updated: Jun 17, 2026

5.3
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2025-50579 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected Vendors & Products

jc211 product(s)
nginx proxy manager
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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Official Patches & Advisories

ADVISORYhttps://github.com/NginxProxyManager/nginx-proxy-manager/issues/4509

All References (2)

→
https://github.com/NginxProxyManager/nginx-proxy-managerProduct
→
https://github.com/NginxProxyManager/nginx-proxy-manager/issues/4509Issue Tracking · Vendor Advisory

Quick Facts

CVE IDCVE-2025-50579
CVSS Score5.3 / 10
SeverityMEDIUM
WeaknessCWE-1259
CISA KEVNo
Affected1 vendor(s)
PublishedAug 19, 2025

Related CVEs (CWE-1259)

CVE-2024-36533
9.8
CVE-2024-29371
7.5
CVE-2026-25700
7.2
CVE-2025-27955
6.5
CVE-2025-51306
6.5
CVE-2024-4598
6.5

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2025-50579 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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