Merijn Schering

11 exploits Active since Nov 2023
CVE-2025-48993 WRITEUP MEDIUM WRITEUP
Group-Office <6.8.123, 25.0.27 - XSS
Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.123 and 25.0.27, a malicious JavaScript payload can be executed via the Look and Feel formatting fields. Any user can update their Look and Feel Formatting input fields, but the web application does not sanitize their input. This could result in a reflected cross-site scripting (XSS) attack. This issue has been patched in versions 6.8.123 and 25.0.27.
CVSS 6.1
CVE-2026-23887 WRITEUP MEDIUM WRITEUP
Group-Office <6.8.148 & 25.0.1-25.0.79 - XSS
Group-Office is an enterprise customer relationship management and groupware tool. In versions 6.8.148 and below, and 25.0.1 through 25.0.79, the application stores unsanitized filenames in the database, which can lead to Stored Cross-Site Scripting (XSS). Users who interact with these specially crafted file names within the Group-Office application are affected. While the scope is limited to the file-viewing context, it could still be used to interfere with user sessions or perform unintended actions in the browser. This issue is fixed in versions 6.8.149 and 25.0.80.
CVSS 5.4
CVE-2026-25512 WRITEUP HIGH WRITEUP
Group-Office < 6.8.150 - Authenticated Remote Code Execution via tmp_file Parameter
Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.150, 25.0.82, and 26.0.5, there is a remote code execution (RCE) vulnerability in Group-Office. The endpoint email/message/tnefAttachmentFromTempFile directly concatenates the user-controlled parameter tmp_file into an exec() call. By injecting shell metacharacters into tmp_file, an authenticated attacker can execute arbitrary system commands on the server. This issue has been patched in versions 6.8.150, 25.0.82, and 26.0.5.
CVSS 8.8
CVE-2023-46730 WRITEUP HIGH WRITEUP
Group-Office 6.3.1-6.6.176 - Server-Side Request Forgery via upload.php
Group-Office is an enterprise CRM and groupware tool. In affected versions there is full Server-Side Request Forgery (SSRF) vulnerability in the /api/upload.php endpoint. The /api/upload.php endpoint does not filter URLs which allows a malicious user to cause the server to make resource requests to untrusted domains. Note that protocols like file:// can also be used to access the server disk. The request result (on success) can then be retrieved using /api/download.php. This issue has been addressed in versions 6.8.15, 6.7.54, and 6.6.177. Users are advised to upgrade. There are no known workarounds for this vulnerability.
CVSS 7.4
CVE-2024-22418 WRITEUP MEDIUM WRITEUP
Group-Office < 6.8.29 - Stored Cross-Site Scripting via Filename Upload
Group-Office is an enterprise CRM and groupware tool. Affected versions are subject to a vulnerability which is present in the file upload mechanism of Group Office. It allows an attacker to execute arbitrary JavaScript code by embedding it within a file's name. For instance, using a filename such as “><img src=x onerror=prompt('XSS')>.jpg” triggers the vulnerability. When this file is uploaded, the JavaScript code within the filename is executed. This issue has been addressed in version 6.8.29. All users are advised to upgrade. There are no known workarounds for this vulnerability.
CVSS 6.5
CVE-2025-25191 WRITEUP MEDIUM WRITEUP
Group-Office - Stored Cross-Site Scripting in Name Field
Group-Office is an enterprise CRM and groupware tool. This Stored XSS vulnerability exists where user input in the Name field is not properly sanitized before being stored. This vulnerability is fixed in 6.8.100.
CVSS 5.4
CVE-2025-48992 WRITEUP MEDIUM WRITEUP
Group-Office <6.8.123, 25.0.27 - XSS
Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.123 and 25.0.27, a stored and blind cross-site scripting (XSS) vulnerability exists in the Name Field of the user profile. A malicious attacker can change their name to a javascript payload, which is executed when a user adds the malicious user to their Synchronization > Address books. This issue has been patched in versions 6.8.123 and 25.0.27.
CVSS 4.8
CVE-2025-48993 WRITEUP MEDIUM WRITEUP
Group-Office <6.8.123, 25.0.27 - XSS
Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.123 and 25.0.27, a malicious JavaScript payload can be executed via the Look and Feel formatting fields. Any user can update their Look and Feel Formatting input fields, but the web application does not sanitize their input. This could result in a reflected cross-site scripting (XSS) attack. This issue has been patched in versions 6.8.123 and 25.0.27.
CVSS 6.1
CVE-2026-23887 WRITEUP MEDIUM WRITEUP
Group-Office <6.8.148 & 25.0.1-25.0.79 - XSS
Group-Office is an enterprise customer relationship management and groupware tool. In versions 6.8.148 and below, and 25.0.1 through 25.0.79, the application stores unsanitized filenames in the database, which can lead to Stored Cross-Site Scripting (XSS). Users who interact with these specially crafted file names within the Group-Office application are affected. While the scope is limited to the file-viewing context, it could still be used to interfere with user sessions or perform unintended actions in the browser. This issue is fixed in versions 6.8.149 and 25.0.80.
CVSS 5.4
CVE-2026-25134 WRITEUP HIGH WRITEUP
Group-Office <6.8.150, 25.0.82, 26.0.5 - RCE
Group-Office is an enterprise customer relationship management and groupware tool. Prior to 6.8.150, 25.0.82, and 26.0.5, the MaintenanceController exposes an action zipLanguage which takes a lang parameter and passes it directly to a system zip command via exec(). This can be combined with uploading a crafted zip file to achieve remote code execution. This vulnerability is fixed in 6.8.150, 25.0.82, and 26.0.5.
CVSS 8.8
CVE-2026-25511 WRITEUP MEDIUM WRITEUP
Group-Office 6.8.0-6.8.149 - Authenticated Server-Side Request Forgery via WOPI Service Discovery URL
Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.150, 25.0.82, and 26.0.5, an authenticated user within the System Administrator group can trigger a full SSRF via the WOPI service discovery URL, including access to internal hosts/ports. The SSRF response body can be exfiltrated via the built‑in debug system, turning it into a visible SSRF. This also allows full server-side file read. This issue has been patched in versions 6.8.150, 25.0.82, and 26.0.5.
CVSS 4.9