Unauthenticated File Write via Unvalidated AJAX Header Manipulation

The AZEXO Store Locator WordPress plugin through 1.4 does not perform capability or nonce checks on its AJAX actions and does not sanitise a request header used to build a file path, allowing any authenticated user such as a subscriber to write a file with an arbitrary name, location, and content, leading to remote code execution.

Casky was already ahead

This CVE exploits attack patterns that Casky's 447matched 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 AZEXO Store Locator WordPress plugin vulnerability (CVE-2026-115204) represents a critical authentication and input validation bypass affecting authenticated users with minimal privileges, such as subscribers. By exploiting missing capability checks and nonce validation on AJAX actions, attackers can manipulate request headers to construct arbitrary file paths, enabling them to write files anywhere on the server with attacker-controlled content. This directly leads to remote code execution when malicious PHP or executable code is written to accessible web directories. Any WordPress installation running the vulnerable plugin version 1.4 or earlier faces immediate risk, particularly those with open registration or compromised low-privilege accounts.

Casky's security skills mapped to MITRE ATT&CK (TA0001 Initial Access, TA0043 Reconnaissance, and TA0002 Execution) detect this attack pattern by identifying: (1) AJAX requests lacking proper WordPress nonce verification and capability checks—flagged under Execution techniques; (2) HTTP header manipulation attempts that deviate from normal request patterns—detected via Reconnaissance analysis; (3) file write operations to web-accessible directories with dynamic path construction—correlated with Initial Access chains. A practitioner using Casky would observe findings highlighting suspicious AJAX POST requests with manipulated file-path headers, missing `wp_verify_nonce()` validation, and file creation events in web root directories, allowing rapid correlation of pre-exploitation reconnaissance with actual compromise attempts across their WordPress infrastructure.

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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 →

447 Casky skills cover this attack pattern

These skills use Claude AI's reasoning model to surface findings in the same attack categories as CVE-2026-115204.

Abuse of Public-Facing API: Mobile API Abuse

mobile security · low

Run

abusing-dpapi-for-credential-access

red teaming · high

Run

abusing-shadow-credentials-for-privesc

red teaming · high

Run

MITRE ATT&CK Techniques

TA0001 TA0043 TA0002

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