p PatchFirst

CVE-2025-53640

CVE-2025-53640 · Indico vulnerable to user enumeration via API endpoint

This page contains facts from public vulnerability sources. Check the original advisory before updating.

Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Starting in version 2.2 and prior to version 3.3.7, an endpoint used to display details of users listed in certain fields (such as ACLs) could be misused to dump basic user details (such as name, affiliation and email) in bulk. Version 3.3.7 fixes the issue. Owners of instances that allow everyone to create a user account, who wish to truly restrict access to these user details, should consider restricting user search to managers. As a workaround, it is possible to restrict access to the affected endpoints (e.g. in the webserver config), but doing so would break certain form fields which could no longer show the details of the users listed in those fields, so upgrading instead is highly recommended.

CVSS 5.3 · Medium · EPSS 0.7% · Fix available

Published
Updated

Stack: python

Affected products and versions

  • indico

    Versions
    • >= 2.2, < 3.3.7: Affected

    No fix published

  • indico PyPI

    Versions
    • 2.2
    • 2.2.1
    • 2.2.2
    • 2.2.3
    • 2.2.4
    • 2.2.5
    • 2.2.6
    • 2.2.7
    • 2.2.8
    • 2.3
    • 2.3.1
    • 2.3.2
    • 2.3.3
    • 2.3.4
    • 2.3.5
    • 3.0
    • 3.0.1
    • 3.0.2
    • 3.0.3
    • 3.0rc1
    • 3.0rc2
    • 3.1
    • 3.1.1
    • 3.2
    • 3.2.1
    • 3.2.2
    • 3.2.3
    • 3.2.4
    • 3.2.5
    • 3.2.6
    • 3.2.7
    • 3.2.8
    • 3.2.9
    • 3.3
    • 3.3.1
    • 3.3.2
    • 3.3.3
    • 3.3.4
    • 3.3.5
    • 3.3.6
    Affected ranges
    • ECOSYSTEM: ≥ 2.2, < 3.3.7

    Update to 3.3.7

Original sources

Check your server →