SEPTEMBER 7, 2026
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Case File

CVE-2026-27823

HIGH · CVSS 8.7 EPSS 1.03% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-20 · Last synced 2026-08-19

CyberRota Analysis

AI-Generated

EGroupware is susceptible to a vulnerability that allows authenticated attackers to execute arbitrary commands on the server, potentially leading to Remote Code Execution (RCE). If user self-registration is enabled, this vulnerability could be exploited without prior authentication, resulting in full system compromise due to improper authorization checks and file handling issues. Organizations using EGroupware should prioritize patching to versions 26.2.20260224 or 23.1.20260224 to mitigate this risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit remote code execution code execution
GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-27823
Severity
HIGH
CVSS
8.7
EPSS
1.03%

Original NVD Description

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.