CVE-2017-7840 — Cross-site Scripting in Mozilla Firefox
Severity
6.1MEDIUMNVD
OSV9.8
EPSS
0.6%
top 29.63%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedJun 11
Latest updateMay 14
Description
JavaScript can be injected into an exported bookmarks file by placing JavaScript code into user-supplied tags in saved bookmarks. If the resulting exported HTML file is later opened in a browser this JavaScript will be executed. This could be used in social engineering and self-cross-site-scripting (self-XSS) attacks if users were convinced to add malicious tags to bookmarks, export them, and then open the resulting file. This vulnerability affects Firefox < 57.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NExploitability: 2.8 | Impact: 2.7
Affected Packages4 packages
🔴Vulnerability Details
6GHSA▶
GHSA-gx4h-qpc9-477w: JavaScript can be injected into an exported bookmarks file by placing JavaScript code into user-supplied tags in saved bookmarks↗2022-05-14