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: 2026-05-20
Score: 9.3 Critical
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

The vulnerability resides in the web configuration interface where authentication is implemented entirely in client‑side JavaScript in login.zhtml. The JavaScript code contains static plaintext credentials, a classic hard‑coded credential flaw (CWE‑798). An unauthenticated attacker who can reach the web interface can extract these credentials from the page source, enabling full administrative access to the device without needing prior authentication.

Affected Systems

Taiko Network Communications Pte Ltd’s AG1000‑01A SMS Alert Gateway, specifically Rev 7.3 and Rev 8 released versions.

Risk and Exploitability

The CVSS score of 9.3 indicates critical severity. EPSS data is not available, and the vulnerability is not listed in CISA KEV. An attacker only needs network access to the web interface and can exploit the flaw trivially by inspecting the page source; no special privileges or complex conditions are required, making the risk high for any device exposed to potentially untrusted networks.

Generated by OpenCVE AI on May 20, 2026 at 21:51 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Apply any vendor‑provided firmware update that removes the hard‑coded credentials.
  • If no update exists, re‑flash the device with a secure build and immediately change the default login credentials.
  • Block or isolate the device’s web configuration interface from public or untrusted networks using firewall rules or network segmentation.
  • Enforce strong internal access controls by restricting management traffic to trusted management networks and employ multi‑factor authentication whenever possible.

Generated by OpenCVE AI on May 20, 2026 at 21:51 UTC.

Tracking

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Advisories

No advisories yet.

History

Wed, 20 May 2026 20:15:00 +0000

Type Values Removed Values Added
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.
Title Taiko AG1000-01A Rev 7.3/8 Hard-coded Credentials via login.zhtml
Weaknesses CWE-798
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-05-20T19:35:28.538Z

Reserved: 2026-05-20T19:04:51.690Z

Link: CVE-2026-9139

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-05-20T20:16:46.323

Modified: 2026-05-20T20:16:46.323

Link: CVE-2026-9139

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-20T22:00:08Z

Weaknesses