CVE-2025-48366: group-office XSS — Fix

Description

Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.119 and 25.0.20, a stored and blind XSS vulnerability exists in the Phone Number field of the user profile within the GroupOffice application. This allows a malicious actor to inject persistent JavaScript payloads, which are triggered in the context of another user when they view the Address Book. Successful exploitation enables actions such as forced redirects, unauthorized fetch requests, or other arbitrary JavaScript execution without user interaction. Versions 6.8.119 and 25.0.20 contain a fix for the issue.

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CVSS v3.1 Score

5.4

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

CWE-87 CWE-87

Affected Products

Vendor	Product	Versions
intermesh	group-office	< 6.8.199
intermesh	group-office	25.0.1 — 25.0.20

References

Advisories & Patches

https://github.com/Intermesh/groupoffice/security/advisories/GHSA-phhq-3h8f-qxpx https://github.com/Intermesh/groupoffice/security/advisories/GHSA-phhq-3h8f-qxpx

Frequently Asked Questions

What is CVE-2025-48366? +

Group-Office is an enterprise customer relationship management and groupware tool. Prior to versions 6.8.119 and 25.0.20, a stored and blind XSS vulnerability exists in the Phone Number field of the user profile within the GroupOffice application. This allows a malicious actor to inject persistent JavaScript payloads, which are triggered in the context of another user when they view the Address Book. Successful exploitation enables actions such as forced redirects, unauthorized fetch requests, or other arbitrary JavaScript execution without user interaction. Versions 6.8.119 and 25.0.20 contain a fix for the issue. It has a CVSS v3.1 base score of 5.4 (MEDIUM).

How severe is CVE-2025-48366? +

CVE-2025-48366 has a CVSS v3.1 score of 5.4 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-48366? +

CVE-2025-48366 affects products from intermesh, specifically: group-office. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-48366? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2025-48366