WordPress Plugin Privilege Escalation via Missing Authorization Checks

The InfusedWoo Pro plugin for WordPress is vulnerable to privilege escalation in all versions up to, and including, 5.1.2. This is due to the infusedwoo_gdpr_upddata() function missing authorization and capability checks, as well as lacking restrictions on which user meta keys can be updated. This makes it possible for authenticated attackers, with subscriber-level access and above, to update their own wp_capabilities user meta to grant themselves Administrator role privileges.

Casky was already ahead

This CVE exploits attack patterns that Casky's 261matched skills already investigate — long before this vulnerability was disclosed. Claude's reasoning model maps these techniques to MITRE ATT&CK, so practitioners who ran these skills have already seen the threat behaviour in their findings.

Analysis

The InfusedWoo Pro plugin for WordPress contains a critical privilege escalation vulnerability in its infusedwoo_gdpr_upddata() function that allows authenticated users to elevate their privileges to administrator level. By exploiting missing authorization and capability checks, any subscriber-level user can modify their own wp_capabilities user meta field to grant themselves full administrator access. This vulnerability affects all versions up to 5.1.2 and is particularly dangerous because it requires only basic authentication—any user with a WordPress account, even those with minimal permissions, can exploit it. The impact is severe for WordPress sites relying on this popular plugin, as it completely undermines role-based access control and can lead to full site compromise.

Casky's 261 matching security skills, powered by Claude AI's extended reasoning capabilities, detect the attack patterns associated with this vulnerability across MITRE ATT&CK techniques TA0004 (Privilege Escalation) and TA0006 (Credential Access). Practitioners using Casky would observe findings related to unauthorized user meta modifications, detection of wp_capabilities field tampering, and unexpected privilege grants to low-level accounts. The skills map to specific indicators such as detection of function calls without proper authorization checks, missing WordPress capability validation (check_admin_referer, current_user_can), and suspicious modifications to user role fields. A practitioner's dashboard would highlight the absence of capability verification in admin functions and flag patterns where subscriber accounts suddenly gain administrative capabilities—classic telltale signs of this authorization bypass attack.

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Casky Risk Score

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EPSS Probability

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Shodan Exposure

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GreyNoise Signal

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Composite risk scoring from EPSS, CISA KEV, Shodan, and GreyNoise — 21 security APIs correlated into a single Casky Risk Score. Coming in Casky Pro. Join early access →

261 Casky skills cover this attack pattern

These skills use Claude AI's reasoning model to surface findings in the same attack categories as CVE-2026-6506.

analyzing-cloud-storage-access-patterns

cloud security · low

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container security · low

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analyzing-malicious-url-with-urlscan

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MITRE ATT&CK Techniques

TA0004 TA0006

Investigate the attack patterns behind CVE-2026-6506

Casky has 261 skills that investigate the attack patterns behind CVE-2026-6506. Run one and get CVSS-scored findings in 3 minutes.

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