CVE-2025-6434

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Source
https://cve.org/CVERecord?id=CVE-2025-6434
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-6434.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-6434
Downstream
Related
Published
2025-06-24T13:15:24.447Z
Modified
2026-03-15T22:52:19.015608Z
Severity
  • 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N CVSS Calculator
Summary
[none]
Details

The exception page for the HTTPS-Only feature, displayed when a website is opened via HTTP, lacked an anti-clickjacking delay, potentially allowing an attacker to trick a user into granting an exception and loading a webpage over HTTP. This vulnerability affects Firefox < 140 and Thunderbird < 140.

References

Affected packages

Git /

Affected ranges

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-6434.json"
unresolved_ranges 
[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "fixed": "140.0"
            }
        ]
    }
]