User Session Synchronizer

User Session Synchronizer has 2 disclosed vulnerabilities in the WordSec catalog, reported between 2025 and 2026; none of them are fixed as of September 2026. Their average CVSS score is 8.0, and the most serious one scores 9.8 out of 10. Severity breakdown: 1 critical and 0 high.

The most common weakness is Cross-Site Request Forgery (CSRF), behind 1 of the records (50%). Other recurring categories include Improper Authentication.

None of the 2 issues recorded for User Session Synchronizer have a published fix yet, which makes virtual patching the only reliable mitigation. The oldest unresolved one dates back to 2025.

2 independent researchers contributed these findings, one record each.

Strategic Overview

Avg CVSSHigh

8.0/ 10

Patch Coverage0%

Open

Fixed

Get automatic notifications for all User Session Synchronizer vulnerabilities before they are exploited.

Most severe open issueCVSS 9.8CVE-2026-15341

User Session Synchronizer <= 1.4.0 - Unauthenticated Authentication Bypass to Account Takeover via 'ussync-key', 'ussync-token', and 'ussync-ref' Parameters

Read the full analysis

Vulnerability Records

2 records


2026-08-14 14:02	User Session Synchronizer <= 1.4.0 - Unauthenticated Authentication Bypass to Account Takeover via 'ussync-key', 'ussync-token', and 'ussync-ref' Parameters User Session Synchronizer <= 1.4.0	`CVE-2026-15341`	9.8 Critical	Afan	No
2025-04-09 00:00	User Session Synchronizer <= 1.4.0 - Cross-Site Request Forgery to Stored Cross-Site Scripting User Session Synchronizer <= 1.4.0	`CVE-2025-32612`	6.1 Medium	Abdi Pranata	No

Showing 1–2 of 2 reports