CVE-2014-8638 Cross-site request forgery in n/a

Medium 6.8 Published Updated

Remote attackers can bypass CORS checks and conduct CSRF attacks via crafted websites due to missing Origin headers in sendBeacon.

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-2014-8638?

CVE-2014-8638 is a medium-severity vulnerability in Mozilla Firefox, published on 14 Jan 2015. 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

The navigator.sendBeacon implementation in Mozilla Firefox before 35.0, Firefox ESR 31.x before 31.4, Thunderbird before 31.4, and SeaMonkey before 2.32 omits the CORS Origin header, which allows remote attackers to bypass intended CORS access-control checks and conduct cross-site request forgery (CSRF) attacks via a crafted web site.

Weakness: CWE-352

Which versions are affected by CVE-2014-8638?

It affects 4 products.

Products include Mozilla Firefox, Mozilla Firefox Esr, Mozilla Seamonkey, Mozilla Thunderbird.

How do I fix CVE-2014-8638?

Upgrade to a fixed version.

Is CVE-2014-8638 being exploited?

There is no known exploitation of CVE-2014-8638 in the wild and no public exploit code.

All Mozilla Firefox vulnerabilities

Sources

Also known as GHSA-38xr-6jm2-v69w, UBUNTU-CVE-2014-8638.

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