VulnerabilityDeferred

CVE-2026-107396

A user who follows one of these URLs can execute attacker-controlled script in the user's browser in the Indico origin.

MEDIUM 5.4EPSS 0.19%

Does this matter?

Lower severity and a low EPSS score (0.19%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 3.1: 5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS: 0.19% probability · 9th percentile
Public exploits: None in Exploit-DB
CISA KEV: Not listed
Weakness: CWE-692
Source: security-advisories@github.com

EPSS trend

EPSS moved from 0.2% on 9 October 2026 to 0.2% on 26 October 2026.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.