PT-2025-50873 · Unknown · Groupsession Zion+2

Published 2025-12-12 · Updated 2025-12-12 · CVE-2025-57883

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions GroupSession versions prior to 5.3.0 GroupSession byCloud versions prior to 5.3.3 GroupSession ZION versions prior to 5.3.2

Description A reflected cross-site scripting issue exists. If a user accesses a specially crafted page or URL, an arbitrary script may be executed in the user's web browser.

Recommendations Update GroupSession to version 5.3.0 or later. Update GroupSession byCloud to version 5.3.3 or later. Update GroupSession ZION to version 5.3.2 or later.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2025-57883

Affected Products

Groupsession

Groupsession Zion

Groupsession Bycloud

References · 6

• https://groupsession.jp/info/info-news/security20251208 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-57883 · Security Note
• https://osv.dev/vulnerability/CVE-2025-57883 · Vendor Advisory
• https://t.me/CVEtracker/39574 · Telegram Post
• https://t.me/cveNotify/145550 · Telegram Post
• https://jvn.jp/en/jp/JVN19940619 · Note