Description
A vulnerability exists where if a user opens a locally saved HTML file, this file can use file: URIs to access other files in the same directory or sub-directories if the names are known or guessed. The Fetch API can then be used to read the contents of any files stored in these directories and they may uploaded to a server. It was demonstrated that in combination with a popular Android messaging app, if a malicious HTML attachment is sent to a user and they opened that attachment in Firefox, due to that app's predictable pattern for locally-saved file names, it is possible to read attachments the victim received from other correspondents. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.
Published: 2019-07-23
Score: 6.5 Medium
EPSS: 19.7% Moderate
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-1869-1 firefox-esr security update
Debian DLA Debian DLA DLA-1870-1 thunderbird security update
Debian DSA Debian DSA DSA-4479-1 firefox-esr security update
Debian DSA Debian DSA DSA-4482-1 thunderbird security update
Ubuntu USN Ubuntu USN USN-4054-1 Firefox vulnerabilities
Ubuntu USN Ubuntu USN USN-4064-1 Thunderbird vulnerabilities
History

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Subscriptions

Debian Debian Linux
Mozilla Firefox Firefox Esr Thunderbird
Opensuse Leap
Redhat Enterprise Linux
Suse Linux Enterprise Package Hub
cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2024-08-04T23:03:32.603Z

Reserved: 2019-05-03T00:00:00.000Z

Link: CVE-2019-11730

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2019-07-23T14:15:16.653

Modified: 2024-11-21T04:21:40.730

Link: CVE-2019-11730

cve-icon Redhat

Severity : Moderate

Publid Date: 2019-07-10T00:00:00Z

Links: CVE-2019-11730 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses