VULNERABILITY INTELLIGENCE

CVE-2020-12391

CVSS score7.5 HIGH
EPSS probability1.46%
CISA KEVNot currently listed
Published2020-05-26
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Description

Documents formed using data: URLs in an OBJECT element failed to inherit the CSP of the creating context. This allowed the execution of scripts that should have been blocked, albeit with a unique opaque origin. This vulnerability affects Firefox < 76.

Weakness classification

  • nvd@nist.gov: CWE-863

Primary references