CVE-2017-5391

CRITICAL

Firefox < 51.0 - Privilege Escalation via Privileged about: Page iframe Injection

Title source: llm

Description

Special "about:" pages used by web content, such as RSS feeds, can load privileged "about:" pages in an iframe. If a content-injection bug were found in one of those pages this could allow for potential privilege escalation. This vulnerability affects Firefox < 51.

References (4)

Core 4

Core References

Issue Tracking, Patch, Vendor Advisory x_refsource_confirm

https://bugzilla.mozilla.org/show_bug.cgi?id=1309310

Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack

http://www.securitytracker.com/id/1037693

Vendor Advisory x_refsource_confirm

https://www.mozilla.org/security/advisories/mfsa2017-01/

Third Party Advisory, VDB Entry vdb-entry x_refsource_bid

http://www.securityfocus.com/bid/95763

Scores

CVSS v3 9.8

EPSS 0.0245

EPSS Percentile 85.4%

Attack Vector NETWORK

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

Status published

Products (1)

mozilla/firefox < 51.0

Published Jun 11, 2018

Tracked Since Feb 18, 2026