Improper Input Validation Affecting Firefox package, versions [,153.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published25 Jul 2026
- disclosed21 Jul 2026
- creditUnknown
Introduced: 21 Jul 2026
CVE-2026-16378 (opens in a new tab)How to fix?
Upgrade Firefox to version 153.0 or higher.
Overview
Affected versions of this package are vulnerable to Improper Input Validation through improper handling of the Copy & Paste and Drag & Drop processes. An attacker can manipulate user interactions or inject unintended data by exploiting weaknesses in these processes.