Description

WordPress is prone to a Denial of Service vulnerability which can be exploited by malicious people to cause the affected website to consume memory and CPU resources, thus denying service to legitimate users. WordPress versions 4.5.x ranging from 4.5 and up to (and including) 4.5.13 are vulnerable.

Remediation

Evaluate and apply the suggested patch

References

https://baraktawily.blogspot.ro/2018/02/how-to-dos-29-of-world-wide-websites.html

https://www.youtube.com/watch?v=nNDsGTalXS0

https://github.com/Quitten/WordPress/blob/master/wp-dos-patch.sh

https://www.exploit-db.com/exploits/43968/

https://packetstormsecurity.com/files/146249/WordPress-Core-Denial-Of-Service.html

https://www.rastating.com/protecting-wordpress-against-cve-2018-6389/

Related Vulnerabilities

WordPress 4.7.x Multiple Vulnerabilities (4.7 - 4.7.18)

WordPress Plugin Import Spreadsheets from Microsoft Excel Cross-Site Scripting (10.1.3)

Joomla Improper Input Validation Vulnerability (CVE-2020-11890)

WordPress Plugin PS PHPCaptcha WP Denial of Service (1.1.0)

Python Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') Vulnerability (CVE-2014-4650)

Severity

High

Classification

CVE-2018-6389 CWE-400 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Tags

Missing Update Denial Of Service