Vulnerability CVE-2019-9787
Published: 2019-03-14

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.

Type:

CWE-352

 (Cross-Site Request Forgery (CSRF))

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.8/10
6.4/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Wordpress -> Wordpress 

 References:
http://www.securityfocus.com/bid/107411
https://blog.ripstech.com/2019/wordpress-csrf-to-rce/
https://github.com/WordPress/WordPress/commit/0292de60ec78c5a44956765189403654fe4d080b
https://lists.debian.org/debian-lts-announce/2019/03/msg00044.html
https://wordpress.org/news/2019/03/wordpress-5-1-1-security-and-maintenance-release/
https://wordpress.org/support/wordpress-version/version-5-1-1/
https://wpvulndb.com/vulnerabilities/9230
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