CVE-2026-107396
Medium
Description
Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Prior to 3.3.13, users who can manage events or create content, including speakers who can upload material, can store crafted javascript URLs in fields that accept custom URLs. A user who follows one of these URLs can execute attacker-controlled script in the user's browser in the Indico origin. This issue is fixed in version 3.3.13.
SeverityMedium
CVSS5.4
Exploit probability—
Product
Indico
PublishedOct 8, 2026
First seenOct 8, 2026
Weakness typeCWE-692CWE-692
How to fix
Update
- indico3.3.13 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| indicoPyPI | v < 3.3.13 | 3.3.13 |
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