CVE-2017-5491 Auth bypass in n/a

Medium 5.3 Published Updated

Remote attackers can bypass posting restrictions in WordPress by spoofing a mail server, requiring specific mail configuration.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2017-5491?

CVE-2017-5491 is a medium-severity authentication bypass vulnerability in Wordpress Wordpress, published on 15 Jan 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

wp-mail.php in WordPress before 4.7.1 might allow remote attackers to bypass intended posting restrictions via a spoofed mail server with the mail.example.com name.

Weakness: CWE-1188

Which versions are affected by CVE-2017-5491?

It affects 1 product.

Products include Wordpress Wordpress.

How do I fix CVE-2017-5491?

Upgrade to a fixed version.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2017-5491 being exploited?

There is no known exploitation of CVE-2017-5491 in the wild and no public exploit code.

All Wordpress Wordpress vulnerabilities

Sources

Also known as DEBIAN-CVE-2017-5491, GHSA-pqh4-x29p-6xrc, UBUNTU-CVE-2017-5491.

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