CVE-2020-12641 — Roundcube Webmail Remote Code Execution Vulnerability

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.

01What is this vulnerability?

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.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2023-06-22. Ransomware use: Unknown.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

Open in Sigma generator →

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2020-05-04T14:58:15.000Z
• Last modified: 2025-10-21T23:35:44.407Z
• Added to CISA KEV: 2023-06-22
• BOD 22-01 due: 2023-07-13

09References

• github.com — https://github.com/roundcube/roundcubemail/releases/tag/1.4.4
• github.com — https://github.com/roundcube/roundcubemail/compare/1.4.3...1.4.4
• roundcube.net — https://roundcube.net/news/2020/04/29/security-updates-1.4.4-1.3.11-and-1.2.10
• github.com — https://github.com/roundcube/roundcubemail/commit/fcfb099477f353373c34c8a65c9035…
• github.com — https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2020-12641-Command%…
• security.gentoo.org — https://security.gentoo.org/glsa/202007-41
• lists.opensuse.org — http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00083.html