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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
Required
User action required
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products
indico:indico
References 4
https://github.com/indico/indico/security/advisories/GHSA-c4wc-ggrj-jg9v
https://github.com/indico/indico/security/advisories/GHSA-c4wc-ggrj-jg9v
https://github.com/indico/indico/pull/7619
https://github.com/indico/indico/pull/7619
https://github.com/indico/indico/commit/d4c8c7127176efa4cb53c64119ca8ee2b551be18
https://github.com/indico/indico/commit/d4c8c7127176efa4cb53c64119ca8ee2b551be18
https://github.com/indico/indico/releases/tag/v3.3.13
https://github.com/indico/indico/releases/tag/v3.3.13