Persistent script execution via unneutralized POST input
Published Jul 21, 2025 · Updated Nov 3, 2025
Persistent XSS in Helmholz REX 100 and MB connect line mbNET.mini before 2.3.3 allows remote authenticated users to inject scripts via POST requests. The vendors have not identified the affected POST handler or field, disclosing only that special elements used to create dynamic content are not neutralized before storage. Administrator-level access is required to store the payload, and a separate user's browser interaction executes it in the device interface, enabling limited data access or modification without interrupting service.
Summary
What happened
Persistent XSS in Helmholz REX 100 and MB connect line mbNET.mini before 2.3.3 allows remote authenticated users to inject scripts via POST requests. The vendors have not identified the affected POST handler or field, disclosing only that special elements used to create dynamic content are not neutralized before storage. Administrator-level access is required to store the payload, and a separate user's browser interaction executes it in the device interface, enabling limited data access or modification without interrupting service.
The record
- CVE
- CVE-2025-41681
- Published
- Jul 21, 2025
- Updated
- Nov 3, 2025
- Vendor
- Helmholz GmbH & Co. KG
- Product
- REX 100
- Classifications
- CWE-79, T1203
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Jul 21, 2025CVE publishedPublication date reported by the CVE source.
- Nov 3, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0.0.0 <2.3.3
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo