CVE-2017-7834 describes a Content Security Policy (CSP) bypass vulnerability in Mozilla Firefox versions prior to 57. When a "data:" URL was loaded in a new tab, it failed to inherit the CSP of the originating page, enabling the execution of JavaScript. This medium-severity vulnerability (CVSS 6.1) could lead to information disclosure and integrity impacts, particularly through cross-site scripting (XSS) attacks in older versions where "data:" documents inherited the original page's context. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 56.0.2CPE matchmatch criteria | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* | ||
< 57CPE match | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
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The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.