AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2012-4203

MEDIUM · CVSS 6.8 EPSS 3.26%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2012-11-21 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 6.8. It affects Firefox, Java. It may be remotely exploitable.

CVE
CVE-2012-4203
Severity
MEDIUM
CVSS
6.8
EPSS
3.26%
Firefox Java

Original NVD 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.