AUGUST 4, 2026
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Case File

CVE-2025-6430

MEDIUM · CVSS 6.1 EPSS 0.22%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-06-24 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 6.1. It affects Firefox.

CVE
CVE-2025-6430
Severity
MEDIUM
CVSS
6.1
EPSS
0.22%
Firefox

Original NVD Description

When a file download is specified via the `Content-Disposition` header, that directive would be ignored if the file was included via a `<embed>` or `<object>` tag, potentially making a website vulnerable to a cross-site scripting attack. This vulnerability was fixed in Firefox 140, Firefox ESR 128.12, Thunderbird 140, and Thunderbird 128.12.

Related CVEs

Other vulnerabilities affecting the same vendor(s)