CVE-2019-9787

HighCVSS 8.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.0 8.8/10CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-352

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://www.securityfocus.com/bid/107411Third Party Advisory, VDB Entry
https://blog.ripstech.com/2019/wordpress-csrf-to-rce/Exploit, Third Party Advisory
https://github.com/WordPress/WordPress/commit/0292de60ec78c5a44956765189403654fe4d080bPatch, Third Party Advisory
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/Release Notes, Vendor Advisory
https://wordpress.org/support/wordpress-version/version-5-1-1/Release Notes, Vendor Advisory
https://wpvulndb.com/vulnerabilities/9230
https://www.debian.org/security/2020/dsa-4677
http://www.securityfocus.com/bid/107411Third Party Advisory, VDB Entry
https://blog.ripstech.com/2019/wordpress-csrf-to-rce/Exploit, Third Party Advisory
https://github.com/WordPress/WordPress/commit/0292de60ec78c5a44956765189403654fe4d080bPatch, Third Party Advisory
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/Release Notes, Vendor Advisory
https://wordpress.org/support/wordpress-version/version-5-1-1/Release Notes, Vendor Advisory
https://wpvulndb.com/vulnerabilities/9230
https://www.debian.org/security/2020/dsa-4677

Timeline

Published: Mar 14, 2019
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2019

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