Description

WordPress Plugin Modern WPBakery Page Builder Addons (formerly Visual Composer)-Add-ons is prone to a vulnerability that lets attackers upload arbitrary files because the application fails to properly verify user-supplied input. An attacker can exploit this vulnerability to upload arbitrary code and run it in the context of the webserver process. This may facilitate unauthorized access or privilege escalation; other attacks are also possible. WordPress Plugin Modern WPBakery Page Builder Addons (formerly Visual Composer)-Add-ons version 3.0.1 is vulnerable; prior versions may also be affected.

Remediation

Disable and remove the plugin until a fix is available

References

https://www.wordfence.com/blog/2021/04/psa-remove-kaswara-modern-wpbakery-page-builder-addons-plugin-immediately/

https://codecanyon.net/item/kaswara-modern-visual-composer-addons/19341477

Related Vulnerabilities

Jenkins Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2015-5320)

WordPress Plugin NextGEN Gallery-WordPress Gallery Privilege Escalation (3.2.2)

Dolibarr Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') Vulnerability (CVE-2018-10094)

Apache HTTP Server Server-Side Request Forgery (SSRF) Vulnerability (CVE-2021-40438)

Oracle Database Server CVE-2011-2240 Vulnerability (CVE-2011-2240)

Severity

High

Classification

CVE-2021-24284 CWE-434 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Tags

Missing Update Unauthenticated File Upload