CVE-2025-66284

MediumCVSS 4.8/10Last modified Oct 7, 2026

Description

Stored cross-site scripting vulnerabilities exist in GroupSession Free edition prior to ver5.7.1, GroupSession byCloud prior to ver5.7.1, and GroupSession ZION prior to ver5.7.1. A logged-in user can prepare a malicious page or URL, and an arbitrary script may be executed on the web browser when another user accesses it.

Metrics

CVSS 4.0 4.8/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/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

Weakness enumeration

CWE-79

Affected software

No affected versions have been published.

Timeline

Published: Dec 12, 2025
Last modified: Oct 7, 2026
NVD status: Analyzed

Related CVEs from 2025

CVE-2025-662864.7An API design flaw in WebKitGTK and WPE WebKit allows untrusted web content to unexpectedly perform IP connections, DNS lookups, and HTTP re CVE-2025-662878.8A flaw was found in WebKitGTK. Processing malicious web content can cause an unexpected process crash due to improper memory handling.CVE-2025-662898.8OrangeHRM is a comprehensive human resource management (HRM) system. From version 5.0 to 5.7, the application does not invalidate existing s CVE-2025-662904.3OrangeHRM is a comprehensive human resource management (HRM) system. From version 5.0 to 5.7, the application’s recruitment attachment retri CVE-2025-662914.3OrangeHRM is a comprehensive human resource management (HRM) system. From version 5.0 to 5.7, the interview attachment retrieval endpoint in CVE-2025-662928.1DPanel is an open source server management panel written in Go. Prior to 1.9.2, DPanel has an arbitrary file deletion vulnerability in the /CVE-2025-662937.1LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. CVE-2025-662948.8Grav is a file-based Web platform. Prior to 1.8.0-beta.27, a Server-Side Template Injection (SSTI) vulnerability exists in Grav that allows CVE-2025-662958.8Grav is a file-based Web platform. Prior to 1.8.0-beta.27, when a user with privilege of user creation creates a new user through the Admin CVE-2025-662968.8Grav is a file-based Web platform. Prior to 1.8.0-beta.27, a privilege escalation vulnerability exists in Grav’s Admin plugin due to the abs CVE-2025-662978.8Grav is a file-based Web platform. Prior to 1.8.0-beta.27, a user with admin panel access and permissions to create or edit pages in Grav CM CVE-2025-662987.5Grav is a file-based Web platform. Prior to 1.8.0-beta.27, having a simple form on site can reveal the whole Grav configuration details (inc