CVE-2017-5387

low-risk
Published 2018-06-11

The existence of a specifically requested local file can be found due to the double firing of the "onerror" when the "source" attribute on a "<track>" tag refers to a file that does not exist if the source page is loaded locally. This vulnerability affects Firefox < 51.

Do I need to act?

-
0.13% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
3
CVSS 3.3/10 Low
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Mozilla

References (8)

Third Party Advisory http://www.securityfocus.com/bid/95763
Third Party Advisory http://www.securitytracker.com/id/1037693
Exploit https://bugzilla.mozilla.org/show_bug.cgi?id=1295023
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2017-01/
Third Party Advisory http://www.securityfocus.com/bid/95763
Third Party Advisory http://www.securitytracker.com/id/1037693
Exploit https://bugzilla.mozilla.org/show_bug.cgi?id=1295023
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2017-01/
19
/ 100
low-risk
Severity 13/34 · Low
Exploitability 1/34 · Minimal
Exposure 5/34 · Minimal