The PDF viewer does not sufficiently sanitize PostScript calculator functions, allowing malicious JavaScript to be injected through a crafted PDF file. This JavaScript can then be run with the permissions of the PDF viewer by its worker. This vulnerability affects Firefox ESR < 52.8, Firefox < 60 and PDF.js < 2.0.550.
{
"nvd_published_at": "2018-06-11T21:29:00Z",
"github_reviewed": true,
"cwe_ids": [
"CWE-94"
],
"severity": "HIGH",
"github_reviewed_at": "2024-05-28T20:43:53Z"
}