Indico vulnerable to Cross-Site Scripting via LaTeX math code
Impact
There is a Cross-Site-Scripting vulnerability when rendering LaTeX math code in contribution or abstract descriptions.
Patches
You should to update to Indico 3.3.8 as soon as possible. See the docs for instructions on how to update.
Workarounds
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.
For more information
If you have any questions or comments about this advisory:
- Open a thread in our forum
- Email us privately at indico-team@cern.ch
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | indico | < 3.3.8 | 3.3.8 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N- Weakness (CWE)
CWE-79- Platform
- Python (PyPI)
- Package
indico- Disclosed
- 10.09.2025
- Updated
- 11.10.2026 13:19
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2026-1461 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-7cf7-9wrr-vrf4 - CC BY 4.0
Vulnerability history: indico
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 16
- First → latest
- 10.2019 10.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 3
- Medium 13
Disclosures per year
- 2019: 1
- 2020: 0
- 2021: 1
- 2022: 0
- 2023: 1
- 2024: 1
- 2025: 4
- 2026: 8
-
Indico vulnerable to Cross-Site Scripting via LaTeX math code this entry
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