CVE-2026-40187
In egroupware version 26.0 and earlier, an authenticated administrator can achieve OS-level Remote Code Execution (RCE) by uploading a malic
CVSS
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Sin CVSS
EPSS
0.9%
p54
KEV
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Exploit Today
16
0-100
Publicado: 20 jul 2026 · Última mod.: 20 jul 2026 · CWE-78 · CWE-95
Sin historial EPSS suficiente todavía.
In egroupware version 26.0 and earlier, an authenticated administrator can achieve OS-level Remote Code Execution (RCE) by uploading a malicious eTemplate XML file (`.xet`) to the VFS `/etemplates` mount. The `Widget::expand_name()` method passes template widget attribute values directly into a PHP `eval()` call with only double-quote escaping applied - **backtick characters are not escaped**. In PHP, backticks inside a double-quoted `eval()` string execute shell commands. This allows an admin-level user to escalate from web application access to arbitrary OS command execution on the server.