CVE-2017-7834

MEDIUM 6.1CVE-2017-7834 · Published 11/06/2018 · updated 17/06/2026

In short

CVE-2017-7834 is a MEDIUM (CVSS 6.1) vulnerability affecting firefox (mozilla).
Chance of exploitation in the next 30 days (EPSS): 1.5%, higher than 74.6% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
firefox mozilla	`≤ 56.0.2`	No fix yet

Description

A "data:" URL loaded in a new tab did not inherit the Content Security Policy (CSP) of the original page, allowing for bypasses of the policy including the execution of JavaScript. In prior versions when "data:" documents also inherited the context of the original page this would allow for potential cross-site scripting (XSS) attacks. This vulnerability affects Firefox < 57.

References

securityfocus.com/bid/101832 · Third Party Advisory
securitytracker.com/id/1039803 · Third Party Advisory
bugzilla.mozilla.org/show_bug.cgi · Issue Tracking
mozilla.org/security/advisories/mfsa2017-24 · Vendor Advisory

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Package

Affected versions

Patched versions

firefox

mozilla

≤ 56.0.2

No fix yet

Description

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