Critical severity · published Jun 11, 2018
CVE-2017-5391
Special "about:" pages used by web content, such as RSS feeds, can load privileged "about:" pages in an iframe
9.8
CVSS
1.7%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.7% · higher than 78% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
Firefox · Mozilla
before 51.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-5391
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-5391
Third Party Advisory
http://www.securityfocus.com/bid/95763
Third Party Advisory
http://www.securitytracker.com/id/1037693
Issue Tracking
https://bugzilla.mozilla.org/show_bug.cgi?id=1309310
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2017-01/
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