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.
https://security.gentoo.org/glsa/202007-41
https://github.com/roundcube/roundcubemail/releases/tag/1.4.4
https://github.com/roundcube/roundcubemail/compare/1.4.3...1.4.4
https://github.com/roundcube/roundcubemail/commit/fcfb099477f353373c34c8a65c9035b06b364db3
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00083.html
https://www.theregister.com/2025/05/21/russias_fancy_bear_alert/
https://www.cisa.gov/news-events/cybersecurity-advisories/aa25-141a
https://thehackernews.com/2025/05/russian-hackers-exploit-email-and-vpn.html
https://thehackernews.com/2025/05/russia-linked-apt28-exploited-mdaemon.html
https://securityaffairs.com/155420/apt/apt8-exploited-outlook-0day-target-nato.html