--- title: "CVE-2019-11730\n | Ubuntu" description: Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things. url: https://ubuntu.com/security/CVE-2019-11730?format=md keywords: index, follow --- # CVE-2019-11730 Publication date 11 July 2019 Last updated 25 August 2025 --- Ubuntu priority **Medium** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) ## Cvss 3 Severity Score **6.5 · Medium** [Score breakdown](https://ubuntu.com/security/CVE-2019-11730?format=md#impact-score) Toggle side navigation ## 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. [Read the notes from the security team](https://ubuntu.com/security/CVE-2019-11730?format=md#notes) ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | firefox | 24.04 LTS noble | Fixed 68.0+build3-0ubuntu1 | | 23.10 mantic | Fixed 68.0+build3-0ubuntu1 | | 23.04 lunar | Fixed 68.0+build3-0ubuntu1 | | 22.10 kinetic | Fixed 68.0+build3-0ubuntu1 | | 22.04 LTS jammy | Fixed 68.0+build3-0ubuntu1 | | 21.10 impish | Fixed 68.0+build3-0ubuntu1 | | 21.04 hirsute | Fixed 68.0+build3-0ubuntu1 | | 20.10 groovy | Fixed 68.0+build3-0ubuntu1 | | 20.04 LTS focal | Fixed 68.0+build3-0ubuntu1 | | 19.10 eoan | Fixed 68.0+build3-0ubuntu1 | | 19.04 disco | Fixed 68.0+build3-0ubuntu0.19.04.1 | | 18.10 cosmic | Fixed 68.0+build3-0ubuntu0.18.10.1 | | 18.04 LTS bionic | Fixed 68.0+build3-0ubuntu0.18.04.1 | | 16.04 LTS xenial | Fixed 68.0+build3-0ubuntu0.16.04.1 | | 14.04 LTS trusty | Not in release | | mozjs38 | 24.04 LTS noble | Not in release | | 23.10 mantic | Not in release | | 23.04 lunar | Not in release | | 22.10 kinetic | Not in release | | 22.04 LTS jammy | Not in release | | 21.10 impish | Not in release | | 21.04 hirsute | Not in release | | 20.10 groovy | Not in release | | 20.04 LTS focal | Not in release | | 19.10 eoan | Not in release | | 19.04 disco | Not in release | | 18.10 cosmic | Not in release | | 18.04 LTS bionic | Ignored | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | mozjs52 | 24.04 LTS noble | Not in release | | 23.10 mantic | Not in release | | 23.04 lunar | Not in release | | 22.10 kinetic | Not in release | | 22.04 LTS jammy | Not in release | | 21.10 impish | Not in release | | 21.04 hirsute | Not in release | | 20.10 groovy | Ignored end of life | | 20.04 LTS focal | Ignored | | 19.10 eoan | Ignored end of life | | 19.04 disco | Ignored end of life | | 18.10 cosmic | Ignored end of life | | 18.04 LTS bionic | Ignored | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | mozjs60 | 24.04 LTS noble | Not in release | | 23.10 mantic | Not in release | | 23.04 lunar | Not in release | | 22.10 kinetic | Not in release | | 22.04 LTS jammy | Not in release | | 21.10 impish | Not in release | | 21.04 hirsute | Not in release | | 20.10 groovy | Not in release | | 20.04 LTS focal | Not in release | | 19.10 eoan | Ignored end of life | | 19.04 disco | Ignored end of life | | 18.10 cosmic | Ignored end of life | | 18.04 LTS bionic | Not in release | | 16.04 LTS xenial | Not in release | | 14.04 LTS trusty | Not in release | | thunderbird | 24.04 LTS noble | Fixed 60.8.0+build1-0ubuntu1 | | 23.10 mantic | Fixed 60.8.0+build1-0ubuntu1 | | 23.04 lunar | Fixed 60.8.0+build1-0ubuntu1 | | 22.10 kinetic | Fixed 60.8.0+build1-0ubuntu1 | | 22.04 LTS jammy | Fixed 60.8.0+build1-0ubuntu1 | | 21.10 impish | Fixed 60.8.0+build1-0ubuntu1 | | 21.04 hirsute | Fixed 60.8.0+build1-0ubuntu1 | | 20.10 groovy | Fixed 60.8.0+build1-0ubuntu1 | | 20.04 LTS focal | Fixed 60.8.0+build1-0ubuntu1 | | 19.10 eoan | Fixed 60.8.0+build1-0ubuntu1 | | 19.04 disco | Fixed 1:60.8.0+build1-0ubuntu0.19.04.1 | | 18.10 cosmic | Fixed 1:60.8.0+build1-0ubuntu0.18.10.1 | | 18.04 LTS bionic | Fixed 1:60.8.0+build1-0ubuntu0.18.04.1 | | 16.04 LTS xenial | Fixed 1:60.8.0+build1-0ubuntu0.16.04.2 | | 14.04 LTS trusty | Not in release | --- * [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) * [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses) ## Notes --- ### [tyhicks](https://launchpad.net/~tyhicks) mozjs contains a copy of the SpiderMonkey JavaScript engine ## Severity score breakdown CVSS version: CVSS v3.0 **Base score** 6.5 · Medium * Base metrics | Parameter | Value | | --- | --- | | Attack vector | Network | | Attack complexity | Low | | Privileges required | None | | User interaction | Required | | Scope | Unchanged | | Confidentiality impact | High | | Integrity impact | None | | Availability impact | None | * Scores | Parameter | Value | | --- | --- | | Base score | 6.5 · Medium | | Exploitability score | - | | Impact score | - | **Vector:** CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11730) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2019-11730) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2019-11730) * [Debian](https://security-tracker.debian.org/tracker/CVE-2019-11730) ### Related Ubuntu Security Notices (USN) + [USN-4054-1](https://usn.ubuntu.com/USN-4054-1) + Firefox vulnerabilities + 12 July 2019 + [USN-4064-1](https://usn.ubuntu.com/USN-4064-1) + Thunderbird vulnerabilities + 17 July 2019 ### Other references * * *