HIGH

CVE-2019-9787

CVSS v3

8.8

HIGH

EPSS Score

85.1%

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

Description

WordPress before 5.1.1 does not properly filter comment content, leading to Remote Code Execution by unauthenticated users in a default configuration. This occurs because CSRF protection is mishandled, and because Search Engine Optimization of A elements is performed incorrectly, leading to XSS. The XSS results in administrative access, which allows arbitrary changes to .php files. This is related to wp-admin/includes/ajax-actions.php and wp-includes/comment.php.

Technical details

Published
3/14/2019

Frequently asked questions

What is CVE-2019-9787?

WordPress before 5.1.1 does not properly filter comment content, leading to Remote Code Execution by unauthenticated users in a default configuration. This occurs because CSRF protection is mishandled, and because Search Engine Optimization of A elements is performed incorrectly, leading to XSS. The XSS results in administrative access, which allows arbitrary changes to .php files. This is related to wp-admin/includes/ajax-actions.php and wp-includes/comment.php.

Is CVE-2019-9787 actively exploited?

Active exploitation of CVE-2019-9787 has not been confirmed. The EPSS score is 85.1%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-9787?

CVE-2019-9787 has a CVSS v3 base score of 8.8 (HIGH severity).

Is CVE-2019-9787 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.