01 Record

CVE-2016-5266

Mozilla Firefox before 48.0 does not properly restrict drag-and-drop (aka dataTransfer) actions for file: URIs, which allows user-assisted remote attackers to access local files via a crafted web

UnratedPUBLISHEDCNA: mozilla

CNA base scoreUnratedNo CNA CVSS vector

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02 Description

Mozilla Firefox before 48.0 does not properly restrict drag-and-drop (aka dataTransfer) actions for file: URIs, which allows user-assisted remote attackers to access local files via a crafted web

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 1.66% probability of exploitation activity in the next 30 days.
EPSS percentile: Ranks above 75.0% of scored records. A rank, not a probability.
NVD base score: 8.1 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
NVD analysis status: Modified. NVD last modified this record on 2026-06-17.
Red Hat severity: Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2016-08-05 01:00Z10 YR AGO

Last updated

2024-08-06 00:53Z2 YR AGO

Reserved

2016-06-03

Assigning CNA

mozilla

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-264

Data version

5.1

Document digest

a637f85c555952ee192913df18a7a68b5cf0ea8aa77d6a965d8f05de6c3fb27e

05 Affected products

VendorProductVersionsPlatforms

mozillafirefoxNot specified—

redhatenterprise_linuxNot specified—

06 References

www.securitytracker.com1036508http://www.securitytracker.com/id/1036508vdb-entryx_refsource_SECTRACK
www.ubuntu.comUSN-3044-1http://www.ubuntu.com/usn/USN-3044-1vendor-advisoryx_refsource_UBUNTU
www.securityfocus.com92260http://www.securityfocus.com/bid/92260vdb-entryx_refsource_BID
security.gentoo.orgGLSA-201701-15https://security.gentoo.org/glsa/201701-15vendor-advisoryx_refsource_GENTOO
bugzilla.mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1226977x_refsource_CONFIRM
lists.opensuse.orgopenSUSE-SU-2016:1964http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00004.htmlvendor-advisoryx_refsource_SUSE
www.mozilla.orghttp://www.mozilla.org/security/announce/2016/mfsa2016-81.htmlx_refsource_CONFIRM
lists.opensuse.orgopenSUSE-SU-2016:2026http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00029.htmlvendor-advisoryx_refsource_SUSE

01 Record index

CVE-2016-5266

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2016-5266

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References