CVE-2019-11765: Medium severity Mozilla Firefox vulnerability
A compromised content process could send a message to the parent process that would cause the 'Click to Play' permission prompt to be shown. However, due to lack of validation from the parent process, if the user accepted the permission request an attacker-controlled permission would be granted rather than the 'Click to Play' permission.
Affected Software
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is CVE-2019-11765?
CVE-2019-11765 is a vulnerability in Mozilla Firefox that allows a compromised content process to send a message to the parent process to show a 'Click to Play' permission prompt, potentially granting an attacker-controlled permission if the user accepts.
How does CVE-2019-11765 affect Mozilla Firefox?
CVE-2019-11765 affects Mozilla Firefox versions up to and excluding version 70, allowing a compromised content process to manipulate the 'Click to Play' permission prompt and gain unauthorized permissions.
What is the severity of CVE-2019-11765?
CVE-2019-11765 has a severity rating of medium (4 out of 10).
How can I fix CVE-2019-11765?
To fix CVE-2019-11765, update Mozilla Firefox to version 70 or above, which includes the necessary fixes to address this vulnerability.
Where can I find more information about CVE-2019-11765?
More information about CVE-2019-11765 can be found on the following references: [Bugzilla](https://bugzilla.mozilla.org/show_bug.cgi?id=1562582) and [Mozilla Security Advisories](https://www.mozilla.org/en-US/security/advisories/mfsa2019-34/)