What’s Vulnerable › Vulnerabilities

CVE-2025-59035: Indico vulnerable to Cross-Site Scripting via LaTeX math code

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-09-10 · updated 2026-06-17
• Weakness: CWE-79

Description

Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Prior to version 3.3.8, there is a Cross-Site-Scripting vulnerability when rendering LaTeX math code in contribution or abstract descriptions. Users should to update to Indico 3.3.8 as soon as possible. As a workaround, only let trustworthy users create content on Indico. Note that a conference doing a Call for Abstracts actively invites external speakers (who the organizers may not know and thus cannot fully trust) to submit content, hence the need to update to a a fixed version ASAP in particular when using such workflows.

Affected products

• indico: before 3.3.8 — fixed in 3.3.8

How to fix

Upgrade to a fixed version: indico 3.3.8. Check the vendor advisory for mitigations.

References

• https://github.com/indico/indico/releases/tag/v3.3.8
• https://github.com/indico/indico/security/advisories/GHSA-7cf7-9wrr-vrf4

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