Hacking, PenTest, and Cybersecurity Tools for Your Security Arsenal!

Loading CVE intelligence

Loading vulnerability catalog

Kitploit is a directory of hacking, cybersecurity, and pentesting tools. Discover the latest project updates to find vulnerabilities, analyze systems, automate testing, and strengthen your security.

Tool Directory

CVE-2026-12295

CriticalPublished

Sandbox escape in the DOM: Navigation component

Published: Jun 16, 2026
Updated: Jul 15, 2026
Assigning CNA: mozilla
Evidence observed: Aug 25, 2026

Primary CVSS

9.6/ 10Critical

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

EPSS probability estimate

0.4%

Low · next 30 days

Percentile: 33.2%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

Sandbox escape in the DOM: Navigation component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.

Sources

CVE-2026-12295-UXXS-in-my-wasmPoC
Firefox content->parent srcdoc forge (N-day, bug 2040160): forged PDocumentChannel with SrcdocData on a non-about:srcdoc URI -> attacker HTML served at victim origin (UXSS), via mojo-port send-path injection from a compromised content process

Responsible use

Use vulnerability information only on systems you own or are authorized to test. Kitploit links to public research metadata and does not store exploit code or malicious payloads.