WordPress Plugin Path Traversal Enables Arbitrary File Movement

The Bulk Media Register WordPress plugin before 2.01 does not properly validate a user-supplied path before moving a file on the server, allowing users with the Author role to move or rename arbitrary files, including outside the WordPress root, which can defeat directory-level access controls and disclose protected files.

Casky was already ahead

This CVE exploits attack patterns that Casky's 351matched 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 Bulk Media Register WordPress plugin before version 2.01 contains a path traversal vulnerability (CWE-22) that allows authenticated users with Author role privileges to move or rename arbitrary files on the server. By failing to properly validate user-supplied file paths, the plugin enables attackers to relocate files outside the WordPress root directory, bypassing directory-level access controls and potentially exposing sensitive configuration files, database backups, or other protected content. This vulnerability is particularly concerning because it requires only Author-level access—a relatively common permission level—making it accessible to a broad class of internal threats or compromised accounts.

Casky's 351 matched security skills leverage Claude's extended reasoning to detect the attack patterns underlying techniques TA0001 (Initial Access) and TA0007 (Discovery). Practitioners using Casky would identify suspicious file system activities such as unexpected file movements outside expected directories, path traversal attempts in plugin parameters, and access to sensitive system files by low-privileged accounts. The platform's skill mappings would surface indicators like POST requests to the plugin with traversal sequences (../ patterns), file operation logs showing Author-role accounts accessing restricted paths, and behavioral anomalies where legitimate media operations suddenly target configuration or backup files. By correlating these signals with the known vulnerable plugin version, security teams can detect exploitation attempts before sensitive data exposure occurs.

Live Threat IntelligenceComing soon

Casky Risk Score

—

EPSS Probability

—

Shodan Exposure

—

GreyNoise Signal

—

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 →

351 Casky skills cover this attack pattern

These skills use Claude AI's reasoning model to surface findings in the same attack categories as CVE-2026-118043.

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 TA0007

Investigate the attack patterns behind CVE-2026-118043

Casky has 351 skills that investigate the attack patterns behind CVE-2026-118043. Run one and get CVSS-scored findings in 3 minutes.

Run the skill that detects this →

X Instagram LinkedIn