CVE-2016-9075 Privilege escalation in Firefox

What is CVE-2016-9075?

CVE-2016-9075 is a critical vulnerability in Mozilla Firefox, published on 11 Jun 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue where WebExtensions can use the mozAddonManager API to elevate privilege due to privileged pages being allowed in the permissions list. This allows a malicious extension to then install additional extensions without explicit user permission. This vulnerability affects Firefox < 50.

Weakness: CWE-264

Which versions are affected by CVE-2016-9075?

It affects 1 product.

Products include Mozilla Firefox.

How do I fix CVE-2016-9075?

Upgrade to a fixed version.

Is CVE-2016-9075 being exploited?

There is no known exploitation of CVE-2016-9075 in the wild and no public exploit code.

Other vulnerabilities in Mozilla Firefox

• CVE-2019-11708 Mozilla Firefox and Thunderbird Sandbox Escape Exploited Critical 10.0
• CVE-2010-3765 Mozilla Multiple Products Remote Code Execution Exploited Critical 9.8
• CVE-2022-26486 Mozilla Firefox Use-After-Free Exploited Critical 9.6
• CVE-2022-26485 Mozilla Firefox Use-After-Free Exploited High 8.8
• CVE-2019-11707 Mozilla Firefox and Thunderbird Type Confusion Exploited High 8.8

All Mozilla Firefox vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-vf79-gc8c-5h95, UBUNTU-CVE-2016-9075.