CVE-2019-11712 Cross-site request forgery in Firefox
Attackers can bypass CORS restrictions via 308 redirects in NPAPI plugins, enabling Cross-Site Request Forgery attacks against Firefox and Thunderbird users.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2019-11712?
CVE-2019-11712 is a high-severity vulnerability in Mozilla Firefox, published on 23 Jul 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
POST requests made by NPAPI plugins, such as Flash, that receive a status 308 redirect response can bypass CORS requirements. This can allow an attacker to perform Cross-Site Request Forgery (CSRF) attacks. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.
Weakness: CWE-352
Which versions are affected by CVE-2019-11712?
It affects 2 products.
Products include Mozilla Firefox, Mozilla Thunderbird.
How do I fix CVE-2019-11712?
Upgrade to a fixed version.
Is CVE-2019-11712 being exploited?
There is no known exploitation of CVE-2019-11712 in the wild and no public exploit code.
Other vulnerabilities in Mozilla Firefox
Sources
Also known as DEBIAN-CVE-2019-11712, GHSA-f95x-f7xq-cfm6, UBUNTU-CVE-2019-11712.