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high advisory

CVE-2026-6506: InfusedWoo Pro WordPress Plugin Privilege Escalation

The InfusedWoo Pro plugin for WordPress is vulnerable to privilege escalation in versions up to 5.1.2 due to missing authorization checks in the infusedwoo_gdpr_upddata() function, allowing authenticated attackers to grant themselves administrator privileges.

The InfusedWoo Pro plugin, a WordPress extension, contains a privilege escalation vulnerability, identified as CVE-2026-6506, in all versions up to and including 5.1.2. The vulnerability lies within the infusedwoo_gdpr_upddata() function, which lacks proper authorization and capability checks. Furthermore, there are no restrictions on which user meta keys can be updated. An attacker with a valid WordPress account (subscriber level or higher) can exploit this flaw to modify their wp_capabilities user meta, effectively granting themselves administrator-level privileges. This can lead to complete compromise of the WordPress site.

Attack Chain

  1. An attacker obtains a valid user account on the WordPress site, with at least subscriber-level access.
  2. The attacker crafts a malicious HTTP request targeting the infusedwoo_gdpr_upddata() function.
  3. The request includes a payload designed to modify the attacker’s wp_capabilities user meta field.
  4. Due to the missing authorization and capability checks, the infusedwoo_gdpr_upddata() function processes the request without validation.
  5. The attacker’s wp_capabilities user meta is updated to include administrator privileges.
  6. The attacker logs out and logs back in to the WordPress site.
  7. Upon re-authentication, the attacker is now recognized as an administrator.
  8. The attacker leverages their newly acquired administrator privileges to perform malicious actions, such as installing backdoors, modifying website content, or exfiltrating sensitive data.

Impact

Successful exploitation of this vulnerability allows attackers to gain complete control over the affected WordPress website. This can lead to data breaches, website defacement, installation of malware, and other malicious activities. Given the popularity of WordPress and the potential for widespread use of the InfusedWoo Pro plugin, a significant number of websites could be at risk.

Recommendation

  • Upgrade the InfusedWoo Pro plugin to a version greater than 5.1.2 to patch CVE-2026-6506.
  • Deploy the Sigma rule provided below to detect attempts to modify wp_capabilities user meta via the infusedwoo_gdpr_upddata() function.
  • Review WordPress user roles and permissions to ensure least privilege.

Detection coverage 2

Detect CVE-2026-6506 Exploitation — InfusedWoo Pro Privilege Escalation

high

Detects CVE-2026-6506 exploitation — attempts to modify wp_capabilities via infusedwoo_gdpr_upddata function

sigma tactics: privilege_escalation techniques: T1068 sources: webserver

Detect WordPress User Meta Modification via HTTP Request

medium

Detects attempts to modify WordPress user meta fields via HTTP requests, which could indicate privilege escalation attempts.

sigma tactics: privilege_escalation techniques: T1068 sources: webserver

Detection queries are available on the platform. Get full rules →