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Seafile Stored Cross-Site Scripting Vulnerability

Vulnerability

A stored Cross-Site Scripting vulnerability has been identified in Seafile versions 11.0.18-Pro, 12.0.10, and 12.0.10-Pro. This vulnerability allows an authenticated attacker to inject a malicious XSS payload into their username, which is then displayed in notifications and activity feeds.

Impact

Exploitation of this vulnerability allows for stored Cross-Site Scripting, where injected scripts are executed in the context of the user viewing the affected notifications or activities.

Remediation

Users can upgrade to Seafile versions 11.0.19-Pro, 12.0.11, or 12.0.11-Pro to address this vulnerability.

Added: Sep 15, 2025, 10:45 PM
Updated: Sep 15, 2025, 10:45 PM

Vulnerability Rating

Custom Algorithm
spread
5.0
impact
1.7
exploitability
5.0
remediation
7.7
relevance
0.5
threat
0.0
urgency
2.9
incentive
1.7

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.