CVE-2025-6427

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Source
https://cve.org/CVERecord?id=CVE-2025-6427
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-6427.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-6427
Downstream
Related
Published
2025-06-24T13:15:23.650Z
Modified
2026-03-14T12:44:23.393127Z
Severity
  • 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
Summary
[none]
Details

An attacker was able to bypass the connect-src directive of a Content Security Policy by manipulating subdocuments. This would have also hidden the connections from the Network tab in Devtools. 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-2025-6427.json"
unresolved_ranges 
[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "fixed": "140.0"
            }
        ]
    }
]