Bug 2374566 (CVE-2025-6434) - CVE-2025-6434 firefox: HTTPS-Only exception screen lacked anti-clickjacking delay
Summary: CVE-2025-6434 firefox: HTTPS-Only exception screen lacked anti-clickjacking d...
Keywords:
Status: NEW
Alias: CVE-2025-6434
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-06-24 13:01 UTC by OSIDB Bzimport
Modified: 2025-06-25 12:42 UTC (History)
5 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2025-06-24 13:01:49 UTC 
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.
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