# CVE-2026-82933: F&F Filipowski mH-DEVELOPER cleartext HTTP transmission

Source: https://junglewise.ai/threats/cve-2026-82933-mh-developer-smart-home-module-sends-its-web-interface-and-api  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-28. Updated: 2026-09-28  
License: CC BY 4.0 with a link back

CVE-2026-82933 · Severity: info · Published 2026-09-28

The F&F Filipowski mH-DEVELOPER is a smart home control module that manages heating zones, lighting, sockets, and connected building automation devices. The module sends all web interface and API traffic over unencrypted HTTP, transmitting passwords, authentication tokens, and device control commands in cleartext. An attacker on the local network can intercept this traffic to steal credentials, hijack user sessions, and take control of connected smart home devices.

Technologies: [F&F Filipowski mH-DEVELOPER](https://junglewise.ai/threats/technologies/mh-developer). Vendors: [F&F Filipowski](https://junglewise.ai/threats/vendors/f-f-filipowski).

## Quick answers

**Is CVE-2026-82933 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-82933 being exploited in the wild.

**How severe is CVE-2026-82933?** Informational severity, published 28 September 2026.

**Which products and versions are affected?** F&F Filipowski mH-DEVELOPER below 3.0.30.

**Is there a fix for CVE-2026-82933?** A patch was published on 2026-09-28: Fixed in version 3.0.30 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-82933 attacked?** It is attacked over the network or from the adjacent network.

**Am I affected by CVE-2026-82933?** Check whether you run F&F Filipowski mH-DEVELOPER at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is a reliance on HTTP instead of HTTPS (CWE-1428) for all web and API communications. The module transmits sensitive data including credentials and control commands without encryption, allowing any network-adjacent attacker to perform passive interception. The fix is available in version 3.0.30; all versions below that are affected.

## Affected products

- F&F Filipowski mH-DEVELOPER below 3.0.30

## Timeline

- 2026-09-28: disclosed
- 2026-09-28: patched: Fixed in version 3.0.30

## References

- [https://cert.pl/posts/2026/09/CVE-2026-82928/](https://cert.pl/posts/2026/09/CVE-2026-82928/)
- [https://www.fif.com.pl/pl/strona-glowna/1367-mh-developer.html](https://www.fif.com.pl/pl/strona-glowna/1367-mh-developer.html)

## Related threats

- [F&F Filipowski mH-DEVELOPER denial of service via uncontrolled resource consumption](https://junglewise.ai/threats/cve-2026-82936-mh-developer-smart-home-module-is-vulnerable-to-denial-of-service)
- [F&F Filipowski mH-DEVELOPER use of unmaintained third-party components](https://junglewise.ai/threats/cve-2026-82935-mh-developer-smart-home-module-ships-with-an-end-of-life)
- [F&F Filipowski mH-DEVELOPER missing firewall initialization](https://junglewise.ai/threats/cve-2026-82932-mh-developer-smart-home-module-does-not-load-any-firewall-rules)
- [F&F Filipowski mH-DEVELOPER missing authentication in API](https://junglewise.ai/threats/cve-2026-82930-mh-developer-smart-home-module-does-not-verify-tokens-in-its)
- [F&F Filipowski mH-DEVELOPER hard-coded SSH host keys](https://junglewise.ai/threats/cve-2026-82929-mh-developer-smart-home-module-uses-the-same-hard-coded-ssh-host)