VULNERABILITY INTELLIGENCE

CVE-2025-66284

CVSS score5.4 MEDIUM
EPSS probability0.17%
CISA KEVNot currently listed
Published2025-12-12
Last modified2026-10-07
CVSS vectorCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

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.

Weakness classification

  • vultures@jpcert.or.jp: CWE-79

Primary references