CVE-2026-27823

Summary

A vulnerability has been identified in EGroupware that may lead to Remote Code Execution (RCE). The issue allows an authenticated attacker to execute arbitrary commands on the server. If user self-registration is enabled, the vulnerability may be exploitable without prior authentication. The vulnerability stems from improper authorization checks combined with a file write primitive and an arbitrary file read vulnerability, which together enable full system compromise. This has been patched in versions 26.2.20260224 and 23.1.20260224.

Affected Software

VendorProductVersion RangeStatus
EGroupwareegroupware<= 26.2.20260216affected
EGroupwareegroupware<= 23.1.20260131affected

Weaknesses

  • CWE-285: CWE-285: Improper Authorization

References