CVE-2026-27870
Medium
Description
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 software could, introduce arbitrary JavaScript by injecting a Cross-site Scripting (XSS) payload into the 'Hostname' field of the configuration file resulting in a XSS in the path /upgrade/query.php?cmd=p+3%3Bversion. This issue affects Regesta Smart HD-PLC - TLDPH16D2: 11.02.05.10.02.
SeverityMedium
CVSS4.8
Exploit probability—
ProductRegesta Smart HD-PLC - TLDPH16D2
PublishedJun 17, 2026
First seenJun 17, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Teldat Regesta Smart HD-PLC - TLDPH16D2 | 11.02.05.10.02 | — |
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