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Vulnerability record · CVE-2019-9787 · published 14 March 2019

CVE-2019-9787: Wordpress cross-site request forgery vulnerability

Wordpress · Wordpress

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.

8.8 CVSS 3.0 High EPSS 39% · top 1.5% CWE-352 · Cross-site request forgery
8.8CVSS 3.0 base score, v2 6.8
39%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
16References, 2 tagged exploit
17 Jun 2026Last modified by NVD

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/107411 Third Party AdvisoryVDB Entry
https://blog.ripstech.com/2019/wordpress-csrf-to-rce/ ExploitThird Party Advisory
https://github.com/WordPress/WordPress/commit/0292de60ec78c5a44956765189403654fe4d080b PatchThird 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 NotesVendor Advisory
https://wordpress.org/support/wordpress-version/version-5-1-1/ Release NotesVendor Advisory
https://wpvulndb.com/vulnerabilities/9230
https://www.debian.org/security/2020/dsa-4677
http://www.securityfocus.com/bid/107411 Third Party AdvisoryVDB Entry
https://blog.ripstech.com/2019/wordpress-csrf-to-rce/ ExploitThird Party Advisory
https://github.com/WordPress/WordPress/commit/0292de60ec78c5a44956765189403654fe4d080b PatchThird 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 NotesVendor Advisory
https://wordpress.org/support/wordpress-version/version-5-1-1/ Release NotesVendor Advisory
https://wpvulndb.com/vulnerabilities/9230
https://www.debian.org/security/2020/dsa-4677

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2019-9787), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.