CVE-2018-1000773 File upload in n/a

High 8.8 Published 6 Sep 2018 Updated 5 Aug 2024

Authenticated attackers can achieve remote code execution via malicious thumbnail uploads in WordPress due to incomplete input validation.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2018-1000773?

CVE-2018-1000773 is a high-severity vulnerability in Wordpress Wordpress, published on 6 Sep 2018. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

WordPress version 4.9.8 and earlier contains a CWE-20 Input Validation vulnerability in thumbnail processing that can result in remote code execution due to an incomplete fix for CVE-2017-1000600. This attack appears to be exploitable via thumbnail upload by an authenticated user and may require additional plugins in order to be exploited however this has not been confirmed at this time.

Weakness: CWE-20

Which versions are affected by CVE-2018-1000773?

It affects 1 product.

Products include Wordpress Wordpress.

How do I fix CVE-2018-1000773?

No fix has been published for CVE-2018-1000773 yet. Limit exposure of the affected software until one is available.

Is CVE-2018-1000773 being exploited?

There is no known exploitation of CVE-2018-1000773 in the wild and no public exploit code.

All Wordpress Wordpress vulnerabilities

Sources

Also known as CVE-2018-1000673, GHSA-25jw-j5g7-jrcc, UBUNTU-CVE-2018-1000773.