#VU14439 Insecure deserialization in WordPress - CVE-2017-1000600,CVE-2018-1000773

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Main Vulnerability Database Vulnerabilities #VU14439

#VU14439 Insecure deserialization in WordPress - CVE-2017-1000600,CVE-2018-1000773

Published: August 17, 2018 / Updated: November 1, 2020


Vulnerability identifier: #VU14439
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2017-1000600,CVE-2018-1000773
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
WordPress
Software vendor:
WordPress.ORG

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to insecure deserialization of data passed as an image file and then executed via the "phar://" stream wrapper within the "wp_get_attachment_thumb_file" function in "/wpincludes/post.php" script. A remote authenticated attacker with ability to create/edit posts can upload a malicious image and execute arbitrary PHP code on vulnerable system. 


Remediation

Install update from vendor's website.

External links