Roundcube Webmail before 1.5.10 and 1.6.x before 1.6.11 allows remote code execution by authenticated users because the _from parameter in a URL is not validated in program/actions/settings/upload.php, leading to PHP Object Deserialization.Referenceshttps://roundcube.net/news/2025/06/01/security-updates-1.6.11-and-1.5.10https://github.com/roundcube/roundcubemail/pull/9865https://github.com/roundcube/roundcubemail/releases/tag/1.6.11https://github.com/roundcube/roundcubemail/commit/0376f69e958a8fef7f6f09e352c541b4e7729c4dhttps://github.com/roundcube/roundcubemail/releases/tag/1.5.10https://github.com/roundcube/roundcubemail/commit/7408f31379666124a39f9cb1018f62bc5e2dc695https://github.com/roundcube/roundcubemail/commit/c50a07d88ca38f018a0f4a0b008e9a1deb32637ehttps://fearsoff.org/research/roundcubehttps://www.vicarius.io/vsociety/posts/cve-2025-49113-roundcube-vulnerability-detectionhttps://www.vicarius.io/vsociety/posts/cve-2025-49113-roundcube-mitigation-script
