CVE-2026-54551Medium· 4.3▾ Sunlit

WireGuard Portal, or wg-portal, is a web-based configuration portal for WireGuard server management

▾ Sunlit zone — Low / medium · no exploitation signal

Depth score24/ 100 · Low

impact 23.7 · likelihood 0.1 · exploitation 0

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Proof of concept

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Published

Sep 17, 2026

Updated

Sep 24, 2026

CVSS

4.3

Vendor

h44z

Product

wg-portal

CWE

CWE-285

Depth score

24 · Low

EPSS

0.36% · p30

Platforms

—

Source

NVD

Vector

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

CISA SSVC

decided 2026-09-21

Exploitation: none
Automatable: no
Technical impact: partial

Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.

EPSS history

Exploit-prediction probability, daily snapshots since Sep 19.

0.2% → 0.4%▲ 0.1%

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

4 events · 7 days

Sep 17, 2026Published
Disclosed via NVD
Sep 19, 2026EPSS first tracked
0.2%
Sep 24, 2026Record revised
Last analysed / modified upstream
Sep 24, 2026EPSS peak
0.2% → 0.4%

h44z CWE-285 #nvd #cve.org

Affected

wg-portal >= 2.2.0, < 2.3.0

Full technical detail▾

Overview

WireGuard Portal, or wg-portal, is a web-based configuration portal for WireGuard server management. From 2.2.0 until 2.3.0, the authenticated GET /api/v0/ws statistics WebSocket in internal/app/api/v0/handlers/endpoint_websocket.go subscribes to TopicPeerStatsUpdated and TopicInterfaceStatsUpdated and forwards every TrafficDelta event without per-user authorization in handleWebsocket(). A low-privilege user can enumerate peer public keys through EntityId and monitor BytesReceived and BytesTransmitted values for peers belonging to other users. The same connection exposes interface_stats and interface names that the REST API limits to administrators. Tunnel content, AllowedIPs, and user identities remain authorization-gated. This issue is fixed in version 2.3.0.

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

References

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#nvd#cve.org

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