CVE-2026-23887

MEDIUM EPSS 15.7%
Published Jan 22, 20265mo ago · Modified Jun 17, 20261w ago
5.1 CVSS 4.0
Medium
Find Similar
Published Jan 22, 2026 5mo ago
Last Modified Jun 17, 2026 1w ago

Description

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 Details

Base Score
5.1
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/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
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction P
Scope X

Threat Intelligence

EPSS Exploit Probability
15.7% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 2

CWE-20 Improper Input Validation Validation
CWE-79 Cross-site Scripting Injection

Affected Products 2

VendorProductVersionRange
group-officegroup_office* <6.8.149
group-officegroup_office*≥25.0.1  –  <25.0.80

References 3

  • github.com https://github.com/Intermesh/groupoffice/commit/3fa40d7edd31fbe33babe07061d5a14ad19ea40f
    Patch
  • github.com https://github.com/Intermesh/groupoffice/commit/ac91b128157bc9c5ea015b6141ce71cd3bbc43f0
    Patch
  • github.com https://github.com/Intermesh/groupoffice/security/advisories/GHSA-3gj5-gvvr-g6hp
    ExploitVendor Advisory

Remediation

  • github.com https://github.com/Intermesh/groupoffice/commit/3fa40d7edd31fbe33babe07061d5a14ad19ea40f
    Patch
  • github.com https://github.com/Intermesh/groupoffice/commit/ac91b128157bc9c5ea015b6141ce71cd3bbc43f0
    Patch