WordPress DevKit Pro Missing Authorization in Theme Installation

The DevKit Pro plugin for WordPress is vulnerable to Missing Authorization in versions up to, and including, 2.3.0. This is due to a missing capability check and missing nonce validation in the DPDEV_install_themes_func() function registered on the wp_ajax_DPDEV_install_themes action. This makes it possible for authenticated attackers, with Subscriber-level access and above, to install arbitrary theme ZIP packages containing PHP files that are extracted into the web-accessible wp-content/themes/ directory, which may make remote code execution possible.

Casky was already ahead

This CVE exploits attack patterns that Casky's 283matched 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 DevKit Pro plugin for WordPress versions up to 2.3.0 contains a critical authorization bypass vulnerability in its AJAX theme installation function. By failing to validate user capabilities and nonce tokens, the plugin allows authenticated users with minimal Subscriber-level permissions to install arbitrary theme packages directly into the web-accessible themes directory. An attacker can exploit this to upload malicious PHP files disguised within theme ZIP archives, achieving remote code execution on the affected WordPress installation. This vulnerability is particularly dangerous because it requires only basic authentication—a compromised low-privilege account or social engineering can provide the entry point needed to compromise the entire site.

Casky's 283 matched security skills leverage Claude AI's extended reasoning to detect the attack patterns associated with this vulnerability across both MITRE ATT&CK tactics TA0004 (Privilege Escalation) and TA0006 (Credential Access). Practitioners using Casky would identify suspicious AJAX requests to wp_ajax_DPDEV_install_themes without proper nonce validation, unusual file uploads to wp-content/themes/ directories containing PHP execution code, and authorization attempts originating from low-privilege user accounts accessing admin-level functionality. The platform's skill mapping helps security teams recognize the missing capability checks (CWE-862) by correlating WordPress plugin behavior analysis, file integrity monitoring on theme directories, and authentication log anomalies—enabling rapid detection and response before malicious code execution occurs.

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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 →

283 Casky skills cover this attack pattern

These skills use Claude AI's reasoning model to surface findings in the same attack categories as CVE-2026-14357.

abusing-dpapi-for-credential-access

red teaming · high

Run

abusing-shadow-credentials-for-privesc

red teaming · high

Run

Access with Stolen Session Cookie

identity access management · low

Run

MITRE ATT&CK Techniques

TA0004 TA0006

Investigate the attack patterns behind CVE-2026-14357

Casky has 283 skills that investigate the attack patterns behind CVE-2026-14357. Run one and get CVSS-scored findings in 3 minutes.

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