---
id: "CVE-2025-5769"
kind: "vulnerability"
aliases: ["CVE-2025-5769"]
title: "Unknown product's login page reflects input, enabling browser script injection"
severity: "medium"
cvss: 6.1
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["other"]
not_affected_if: []
published_at: "2026-11-03T07:17:41+00:00"
first_seen_at: "2026-11-03T07:19:16+00:00"
updated_at: "2026-11-03T07:21:10+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-5769", "first_seen_at": "2026-11-03T07:19:16+00:00"}]
---

# Unknown product's login page reflects input, enabling browser script injection

The authentication endpoint renders user-supplied input without encoding, so an attacker can inject JavaScript that runs in a victim's browser. The attacker can redirect users, alter the displayed page, or read browser data, but session cookies are httpOnly and cannot be stolen this way.

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

## Timeline

- 2026-11-03T07:19:16+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2025-5769

## From the sources

The authentication endpoint does not properly encode user-supplied input before rendering it within the web page. This lack of output encoding allows an attacker to inject malicious JavaScript payloads into the authentication flow, which are then executed by the victim's browser.

By exploiting this vulnerability, an attacker can redirect the user's browser to a malicious website, modify the content of the web page displayed to the user, or exfiltrate information from the browser. However, due to the implementation of the httpOnly flag on session-related sensitive cookies, session hijacking and similar attacks are not possible.

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