Stored XSS Vulnerability in Orca Heat Pumps by Orca
CVE-2026-25599

6.3MEDIUM

Key Information:

Vendor

Orca Energy

Status
Orca Heat Pump
Orca User Portal
Vendor
CVE Published:
1 June 2026

What is CVE-2026-25599?

The Orca heat pumps suffer from a serious vulnerability due to missing authentication mechanisms and the transmission of data in clear text to the control server. An unencrypted and unauthenticated HTTP connection on a non-secure port allows attackers to impersonate legitimate devices. This vulnerability enables the injection of malicious payloads into the control interface of the Orca user portal. As a result, this can lead to the theft of user cookies, compromising user accounts and exposing sensitive information, alongside facilitating further unauthorized actions within the portal.

Affected Version(s)

Orca heat pump 0 < 2.1.0

Orca user portal 0 < 1.19

References

https://www.cert.si/en/cve-2026-25599/

CVSS V3.1

Score:
6.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Tom Kern, NIL d.o.o.
.