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CVE-2018-19207: Van Ons Wp Gdpr Compliance: Remote code execution

CVE-2018-19207 is rated critical with a CVSS v3.0 base score of 9.8 and affects Van Ons Wp Gdpr Compliance. Per its scoring, it can be exploited over the network, without authentication, without any user interaction. The scored impact on confidentiality, integrity and availability is the highest available.

Vulnerability description

The Van Ons WP GDPR Compliance (aka wp-gdpr-compliance) plugin before 1.4.3 for WordPress allows remote attackers to execute arbitrary code because $wpdb->prepare() input is mishandled, as exploited in the wild in November 2018.

Severity breakdown

CVSS v3.0 9.8: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

• Attack vector: Network. Exploitable remotely over the network, with no need for local or physical access.
• Attack complexity: Low. No special conditions; the attack can be repeated reliably.
• Privileges required: None. No account or prior access is needed.
• User interaction: None. No action from any user is needed.
• Scope: Unchanged. Impact stays within the vulnerable component.
• Confidentiality impact: High. Total loss of confidentiality; sensitive data can be fully disclosed.
• Integrity impact: High. Total loss of integrity; data or system state can be fully modified.
• Availability impact: High. Total loss of availability; the component can be shut down.

Underlying weakness

CWE-425: Direct Request

The web application does not adequately enforce appropriate authorization on all restricted URLs, scripts, or files.

Affected products

• Van Ons Wp Gdpr Compliance: before 1.4.3

References

• https://wordpress.org/plugins/wp-gdpr-compliance/#developers
• http://www.securityfocus.com/bid/105921
• https://wpvulndb.com/vulnerabilities/9144
• https://www.wordfence.com/blog/2018/11/trends-following-vulnerability-in-wp-gdpr-compliance-plugin/