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Description

Taiko AG1000-01A SMS Alert Gateway Rev 7.3 and Rev 8 contains a hard-coded credential vulnerability in the embedded web configuration interface where authentication is implemented entirely in client-side JavaScript in login.zhtml, exposing static plaintext credentials in the page source. Unauthenticated attackers with network access can recover administrative credentials directly from the client-side validate() function to obtain full administrative access to the device.

PUBLISHED Reserved 2026-05-20 | Published 2026-05-20 | Updated 2026-05-20 | Assigner VulnCheck




CRITICAL: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CRITICAL: 9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-798 Use of Hard-coded Credentials

Product status

Default status
unknown

Rev 7.3 (custom)
affected

Rev 8 (custom)
affected

UM-AG1000_R7.2 (custom)
affected

Credits

Muhammad Imam Baguna finder

VulnCheck coordinator

References

medium.com/...aiko-ag1000-01a-sms-alert-gateway-82095b1d633e (Ledger Security Bulletin 019) technical-description

www.vulncheck.com/...-hard-coded-credentials-via-login-zhtml third-party-advisory

cve.org (CVE-2026-9139)

nvd.nist.gov (CVE-2026-9139)

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