Medium 5.4Published Oct 8, 2026

CVE-2026-107396Indico: Cross-Site-Scripting in link fields

Updated under an hour ago (2026-10-19 09:10 UTC)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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: 5.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness (CWE): CWE-692
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Oct 9, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

indico indico indico:indico (from the name)	before 3.3.13	CNA record

References

https://github.com/indico/indico/security/advisories/GHSA-c4wc-ggrj-jg9vx-refsource-confirm
https://github.com/indico/indico/pull/7619x-refsource-misc
https://github.com/indico/indico/commit/d4c8c7127176efa4cb53c64119ca8ee2b551be18x-refsource-misc
https://github.com/indico/indico/releases/tag/v3.3.13x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.