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.

CVSS v3.0 8.8 HIGH
CVSS v2.0 6.8 MEDIUM

8.8^/10

CVSS v3.0 : HIGH

V3 Legend

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

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://wordpress.org/support/wordpress-version/version-5-1-1/	Release Notes Vendor Advisory
https://wordpress.org/news/2019/03/wordpress-5-1-1-security-and-maintenance-release/	Release Notes Vendor Advisory
https://github.com/WordPress/WordPress/commit/0292de60ec78c5a44956765189403654fe4d080b	Patch Third Party Advisory
https://blog.ripstech.com/2019/wordpress-csrf-to-rce/	Exploit Third Party Advisory
http://www.securityfocus.com/bid/107411	Third Party Advisory VDB Entry
https://wpvulndb.com/vulnerabilities/9230
https://lists.debian.org/debian-lts-announce/2019/03/msg00044.html
https://www.debian.org/security/2020/dsa-4677

Configurations

Configuration 1 (hide)

cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*

Information

Published : 2019-03-14 09:29

Updated : 2019-03-31 15:29

NVD link : CVE-2019-9787

Mitre link : CVE-2019-9787

JSON object : View

CWE

CWE-352

Cross-Site Request Forgery (CSRF)

Products Affected

wordpress

wordpress

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8.8 /10