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

Quick assessment

Affected
indico indico
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Indico 是一个基于 Flask-Multipass（一种用于 Flask 的多后端认证系统）的事件管理系统。在 3.3.13 版本之前，能够管理事件或创建内容的用户（包括可以上传资料的演讲者）可以在接受自定义 URL 的字段中存储经过构造的 JavaScript URL。其他用户如果点击或跟随这些 URL，会在 Indico 的原始上下文中执行攻击者控制的脚本。此问题已在 3.3.13 版本中得到修复。

CVSS 5.4 · Medium
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I. Basic Information for CVE-2026-107396

Vulnerability Information
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Vulnerability Title
Indico: Cross-Site-Scripting in link fields
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-692
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
indico indico < 3.3.13 -

II. Public POCs for CVE-2026-107396

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III. Intelligence Information for CVE-2026-107396

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Patches & Fixes for CVE-2026-107396 (2)

Vendor Advisories for CVE-2026-107396 (1)

Vendor Pages for CVE-2026-107396 (1)

Same Patch Batch · indico · 2026-10-08 · 4 CVEs total

CVE-2026-107394 6.8 MEDIUM Indico: Incomplete Server-Side Request Forgery (SSRF) check
CVE-2026-107397 4.4 MEDIUM Indico: Cross-Site-Scripting in minutes editor
CVE-2026-107395 4.3 MEDIUM Indico: Missing access check in legacy session export API

IV. Related Vulnerabilities

Same product: indico
Same vendor: indico
Same weakness: CWE-692

V. Comments for CVE-2026-107396

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