CVE-2026-25512-PoC-Group-Office-Authenticated-RCE

CVE-2026-25512 PoC – Group-Office Authenticated RCE via TNEF Handler Author: Mohammed Idrees Banyamer Handle: @banyamersecurity GitHub: mbanyamer Date: February 04, 2026 Exploit Title Group-Office Intermesh 26.0.4 – Authenticated RCE via TNEF Attachment Handler CVE CVE-2026-25512 CWE CWE-78 OS...

CVE-2023-25292

CVE-2023-25292 Reflected Cross Site Scripting XSS in Intermesh BV Group-Office version 6.6.145, allows attackers to gain escalated privileges and gain sensitive information via the GOLANGUAGE cookie Vulnerability Details Product: Group Office Application Version: 6.6.145 Vulnerability Type:...

Group-Office < 26.0.5 - Remote Code Execution

Group-Office before versions 6.8.150, 25.0.82, and 26.0.5 is vulnerable to remote code execution via OS command injection. The endpoint email/message/tnefAttachmentFromTempFile directly concatenates the user-controlled parameter tmpfile into an exec call. By injecting shell metacharacters into...

CVE-2026-25512

CVE-2026-25512: Remote Code Execution via Command Injection in TNEF Handler - Group-Office CVSS 4.0 Vector : CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H Table of Contents Summary Affected Versions Technical Details Root Cause Source to Sink Flow Exploitation Automated Exploit...

CVE-2018-25438

Intermesh Group-Office 3.3.0 before 3.5.5 contains an unauthenticated path traversal vulnerability in compress.php that allows remote attackers to read arbitrary files by manipulating the 'file' parameter. Attackers can send GET requests to /compress.php with '../' sequences in the 'file'...

EUVD-2018-21962

Intermesh Group-Office 3.3.0 before 3.5.5 contains an unauthenticated path traversal vulnerability in compress.php that allows remote attackers to read arbitrary files by manipulating the 'file' parameter. Attackers can send GET requests to /compress.php with '../' sequences in the 'file'...

CVE-2018-25438

Intermesh Group-Office versions 3.3.0 before 3.5.5 are vulnerable to an unauthenticated path traversal vulnerability in the compress.php component. The flaw allows remote attackers to read arbitrary files by manipulating the file parameter with ../ sequences, which are appended to the cache path ...

VulnCheck KEV: CVE-2018-25438

Intermesh Group-Office 3.3.0 before 3.5.5 contains an unauthenticated path traversal vulnerability in compress.php that allows remote attackers to read arbitrary files by manipulating the 'file' parameter. Attackers can send GET requests to /compress.php with '../' sequences in the 'file'...

CVE-2026-45551

Group-Office is an enterprise customer relationship management and groupware tool. Prior to 26.0.25, 25.0.100, and 6.8.165, GroupOffice allows authenticated users to persist arbitrary legacy settings for any userid via index.php?r=core/saveSetting. A separate client-side sink in the email module...

CVE-2026-45551 Group-Office: Authenticated Stored XSS in Administrator Context via Arbitrary Cross-User Setting Write

Group-Office is an enterprise customer relationship management and groupware tool. Prior to 26.0.25, 25.0.100, and 6.8.165, GroupOffice allows authenticated users to persist arbitrary legacy settings for any userid via index.php?r=core/saveSetting. A separate client-side sink in the email module...

CVE-2026-45551

Affected product: Group-Office (enterprise CRM/groupware). Vulnerability details: Before versions 26.0.25, 25.0.100, and 6.8.165, an authenticated user can persist arbitrary legacy settings for any user_id via index.php?r=core/saveSetting, and a client-side sink in the email module injects email_...

CVE-2026-45551 Group-Office: Authenticated Stored XSS in Administrator Context via Arbitrary Cross-User Setting Write

Group-Office is an enterprise customer relationship management and groupware tool. Prior to 26.0.25, 25.0.100, and 6.8.165, GroupOffice allows authenticated users to persist arbitrary legacy settings for any userid via index.php?r=core/saveSetting. A separate client-side sink in the email module...

Group Office security vulnerabilities

Group Office is a modular office suite developed by the Dutch company Group Office. Versions of Group Office prior to 26.0.25, 25.0.100, and 6.8.165 contained security vulnerabilities. These vulnerabilities stemmed from allowing authenticated users to persist legacy settings for arbitrary user ID...

CVE-2026-34838

Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.156, 25.0.90, and 26.0.12, a vulnerability in the AbstractSettingsCollection model leads to insecure deserialization when these settings are loaded. By injecting a serialized FileCookieJar...

CVE-2026-34838

Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.156, 25.0.90, and 26.0.12, a vulnerability in the AbstractSettingsCollection model leads to insecure deserialization when these settings are loaded. By injecting a serialized FileCookieJar...

CVE-2026-34838

Group-Office contains an authenticated RCE in the AbstractSettingsCollection deserialization path. Before versions 6.8.156, 25.0.90, and 26.0.12, an attacker can inject a serialized FileCookieJar into a settings string, causing Arbitrary File Write and server RCE. This is fixed in 6.8.156, 25.0.9...

EUVD-2026-18532

Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.156, 25.0.90, and 26.0.12, a vulnerability in the AbstractSettingsCollection model leads to insecure deserialization when these settings are loaded. By injecting a serialized FileCookieJar...

CVE-2026-34838

Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.156, 25.0.90, and 26.0.12, a vulnerability in the AbstractSettingsCollection model leads to insecure deserialization when these settings are loaded. By injecting a serialized FileCookieJar...

CVE-2026-34838 Group-Office: Authenticated Remote Code Execution via PHP Insecure Deserialization in `AbstractSettingsCollection`

Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.156, 25.0.90, and 26.0.12, a vulnerability in the AbstractSettingsCollection model leads to insecure deserialization when these settings are loaded. By injecting a serialized FileCookieJar...

CVE-2026-34838 Group-Office: Authenticated Remote Code Execution via PHP Insecure Deserialization in `AbstractSettingsCollection`

Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.156, 25.0.90, and 26.0.12, a vulnerability in the AbstractSettingsCollection model leads to insecure deserialization when these settings are loaded. By injecting a serialized FileCookieJar...