WNC T-Mobile 5G Box IDU router contains a cross-site request forgery (CSRF) vulnerability in the portal.cgi component. The anti-CSRF mechanism fails to validate the csrf_token_value parameter, accepting any arbitrary value as valid. This allows a remote attacker to perform unauthorized actions on the device by tricking an authenticated user into visiting a malicious website.This issue has been fixed in firmware versionĀ 1.1.0.651412

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Fixes

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Workaround

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History

Wed, 16 Sep 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 16 Sep 2026 11:45:00 +0000

Type Values Removed Values Added
Description WNC T-Mobile 5G Box IDU router contains a cross-site request forgery (CSRF) vulnerability in the portal.cgi component. The anti-CSRF mechanism fails to validate the csrf_token_value parameter, accepting any arbitrary value as valid. This allows a remote attacker to perform unauthorized actions on the device by tricking an authenticated user into visiting a malicious website.This issue has been fixed in firmware versionĀ 1.1.0.651412
Title CSRF token bypass in T-Mobile 5G Box IDU routers
First Time appeared Wnc
Wnc t-mobile 5g Box Idu
Weaknesses CWE-352
CPEs cpe:2.3:a:wnc:t-mobile_5g_box_idu:*:*:*:*:*:*:*:*
Vendors & Products Wnc
Wnc t-mobile 5g Box Idu
References
Metrics cvssV4_0

{'score': 8.4, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: CERT-PL

Published:

Updated: 2026-09-16T16:00:47.111Z

Reserved: 2026-04-15T11:10:34.850Z

Link: CVE-2026-40857

cve-icon Vulnrichment

Updated: 2026-09-16T16:00:43.373Z

cve-icon NVD

Status : Received

Published: 2026-09-16T12:17:03.910

Modified: 2026-09-16T17:17:18.257

Link: CVE-2026-40857

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses