SB2020060211 - Multiple vulnerabilities in Page Builder: PageLayer – Drag and Drop website builder plugin for WordPress

Description

This security bulletin contains information about 2 vulnerabilities.

1) Cross-site request forgery (CVE-ID: N/A)

CWE-ID: CWE-352 - Cross-Site Request Forgery (CSRF)

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to perform cross-site request forgery attacks.

The vulnerability exists due to insufficient validation of the HTTP request origin in the settings update function. A remote attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website, leading to XSS.

2) Permissions, Privileges, and Access Controls (CVE-ID: N/A)

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to improper permission checks in several AJAX actions, such as "wp_ajax_pagelayer_save_content", "wp_ajax_pagelayer_update_site_title" and "wp_ajax_pagelayer_save_template". A remote authenticated attacker can change any data on a page edited with PageLayer, change a site title or create new PageLayer templates that were saved as new posts.

Remediation

Install update from vendor's website.

References

• https://wpvulndb.com/vulnerabilities/10240/
• https://www.wordfence.com/blog/2020/05/high-severity-vulnerabilities-in-pagelayer-plugin-affect-over-200000-wordpress-sites/