Which versions of Group Office are affected by CVE-2025-48368?

Organizations using Group-Office should be aware of moderate risk from CVE-2025-48368, a cross-site scripting vulnerability rated CVSS 5.8.

Is there a public PoC exploit available for CVE-2025-48368?

Yes, a public proof-of-concept exploit is available for CVE-2025-48368. Prioritise patching immediately. EPSS: 0.2%.

How to fix or mitigate CVE-2025-48368?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

Group Office CVE-2025-48368

Q: What is the CVSS score of CVE-2025-48368?

CVE-2025-48368 has a CVSS 4.0 base score of 5.8 (Medium). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.2%.

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2025-05-22 security-advisories@github.com

XSS Microsoft Group Office Intermesh

5.8

CVSS 4.0 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

5.8 MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Scope

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:43 vuln.today

PoC Detected

May 30, 2025 - 01:17 vuln.today

Public exploit code

CVE Published

May 22, 2025 - 18:15 nvd

MEDIUM 5.8

DescriptionGitHub Advisory

Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.119 and 25.0.20, a DOM-based Cross-Site Scripting (XSS) vulnerability exists in the GroupOffice application, allowing attackers to execute arbitrary JavaScript code in the context of the victim's browser. This can lead to session hijacking, defacement, or redirection to malicious sites. The vulnerability can be triggered by injecting a crafted payload into a parameter that is later processed unsafely in the DOM. Versions 6.8.119 and 25.0.20 contain a fix for the issue.

AnalysisAI

Group-Office is an enterprise customer relationship management and groupware tool. Rated medium severity (CVSS 5.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.119 and 25.0.20, a DOM-based Cross-Site Scripting (XSS) vulnerability exists in the GroupOffice application, allowing attackers to execute arbitrary JavaScript code in the context of the victim's browser. This can lead to session hijacking, defacement, or redirection to malicious sites. The vulnerability can be triggered by injecting a crafted payload into a parameter that is later processed unsafely in the DOM. Versions 6.8.119 and 25.0.20 contain a fix for the issue. Affected products include: Intermesh Group-Office.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.