CVEvulnerability

CVE-2020-12391

7.5 HIGH Published 2020-05-26 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-05-26
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:P/A:N
Weaknesses
CWE-863

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.

Affected configurations

• mozilla firefox (< 76.0)

Related

Weakness · CWE (1)

  • CWE-863 Incorrect Authorization weakness

References