Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Prior to 3.3.13, an authenticated user can misuse the legacy session export API to retrieve details for a restricted session without access to that session, as long as the containing event is accessible. The missing access check can disclose session metadata such as the title, description, and conveners.
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
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products
indico:indico
References 3
https://github.com/indico/indico/security/advisories/GHSA-6p4f-j8j6-463q
https://github.com/indico/indico/security/advisories/GHSA-6p4f-j8j6-463q
https://github.com/indico/indico/commit/524e8e93eadcd8484905b1147020a35f5dce6038
https://github.com/indico/indico/commit/524e8e93eadcd8484905b1147020a35f5dce6038
https://github.com/indico/indico/releases/tag/v3.3.13
https://github.com/indico/indico/releases/tag/v3.3.13