Vulnerability Database

314,486

Total vulnerabilities in the database

CVE-2018-5134

WebExtensions may use "view-source:" URLs to view local "file:" URL content, as well as content stored in "about:cache", bypassing restrictions that only allow WebExtensions to view specific content. This vulnerability affects Firefox < 59.

  • Published: Jun 11, 2018
  • Updated: Nov 9, 2025
  • CVE: CVE-2018-5134
  • Severity: Medium
  • Exploit:

CVSS v2:

  • Severity: Medium
  • Score: 5
  • AV:N/AC:L/Au:N/C:P/I:N/A:N

CWEs:

Software From Fixed in
mozilla / firefox - 59.0