Cross-Site Scripting (XSS) in Regesta Smart HD-PLC - TLDPH16D2 (CVE-2026-27867)
Summary
Cross-site scripting in Regesta Smart HD-PLC - TLDPH16D2 (CVE-2026-27867). Risk of unauthorized operations or information disclosure.
Original description
The description as published by the source.
An attacker with access via network to the Regesta Smart HD-PLC of the provider Teldat (in this case, registration action is required) who has the vulnerable firmware version could inject
a specific payload via the parameter "cmdcookie" withing the /upgrade/index.html resulting in to a Cross-Site Scripting (XSS). This issue affects Regesta Smart HD-PLC - TLDPH16D2:
11.02.06.00.02
Source: NIST National Vulnerability Database NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-27867 has been found in Regesta Smart HD-PLC - TLDPH16D2.
Risk of unauthorized operations or information disclosure.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Regesta Smart HD-PLC - TLDPH16D2 CVE-2026-27867" on the vendor's site.
CVE-2026-27867 (Regesta Smart HD-PLC - TLDPH16D2) — CWE-79
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
Cross-site scripting (XSS) (CWE-79) exists in Regesta Smart HD-PLC - TLDPH16D2.
Check the vendor advisory for the affected versions of Regesta Smart HD-PLC - TLDPH16D2.
Severity: ?. Risk of unauthorized operations or information disclosure.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで Regesta Smart HD-PLC - TLDPH16D2 を使っているサービスとバージョンを洗い出す。
-
2Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
References
- web support.teldat.com
- web support.teldat.com
- web hackrtu.com
- web hackrtu.com
- web teldat.com
- web nvd.nist.gov
- web hackrtu.com
- web hackrtu.com
- web teldat.com
- web github.com