CVE-2012-4203

MediumCVSS 6.8/10Last modified Jun 16, 2026

Description

The New Tab page in Mozilla Firefox before 17.0 uses a privileged context for execution of JavaScript code by bookmarklets, which allows user-assisted remote attackers to run arbitrary programs by leveraging a javascript: URL in a bookmark.

Metrics

CVSS 2.0 6.8/10AV:N/AC:M/Au:N/C:P/I:P/A:P

Weakness enumeration

CWE-264

Affected software

No affected versions have been published.

Timeline

Published
Nov 21, 2012
Last modified
Jun 16, 2026
NVD status
Modified

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CVE-2012-4203: Medium severity, CVSS 6.8 | Vulnix