---
id: "CVE-2026-103377"
kind: "vulnerability"
aliases: ["CVE-2026-103377"]
title: "Castile-La Mancha Parliament video library: reflected XSS runs script in visitors' browsers"
severity: "medium"
cvss: 5.1
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["browser", "other", "web-application"]
not_affected_if: []
published_at: "2026-10-26T10:16:50+00:00"
first_seen_at: "2026-10-26T10:29:17+00:00"
updated_at: "2026-10-26T10:30:58+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-103377", "first_seen_at": "2026-10-26T10:29:17+00:00"}]
---

# Castile-La Mancha Parliament video library: reflected XSS runs script in visitors' browsers

A reflected cross-site scripting flaw exists in the web application of the Castile-La Mancha Regional Parliament's video library. User-supplied input is rendered into the page without sanitisation, so an attacker can run JavaScript in the browser of a victim who opens a crafted link or content.

_Summary, check and fix written by a model from the sources; labelled as such._

## Timeline

- 2026-10-26T10:29:17+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-103377

## From the sources

A reflected Cross-Site Scripting (XSS) vulnerability has been identified in the web application of the Castile-La Mancha Regional Parliament’s video library. The application embeds user-supplied content into the page without properly sanitising it before it is rendered by the browser. Exploitation of this vulnerability could allow a remote attacker to execute arbitrary JavaScript code in the browser of a victim who interacts with the content crafted for the attack.

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