Music Store <= 1.4.7 - Unauthenticated Arbitrary File Read via 'f' Parameter

2026-10-09 17:25
Quentin VILLAIN

Strategic Overview

Status
Patched in 1.4.8
Affected Plugin
Music Store – WordPress eCommerce
Affected Version
<= 1.4.7
CVSS
7.5High
Weakness type
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVE
CVE pending
View all Music Store – WordPress eCommerce vulnerabilities

At a glance

This record tracks a high-severity Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in the Music Store WordPress plugin, affecting versions <= 1.4.7. It carries a CVSS score of 7.5 (reachable over the network; low attack complexity; high confidentiality impact). Exploitation requires no authentication. The issue is fixed in version 1.4.8; sites on affected versions should update now. Disclosed October 2026, reported by Quentin VILLAIN.

Vulnerability Overview

The Music Store – WordPress eCommerce plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 1.4.7 via the 'f' parameter parameter. This makes it possible for unauthenticated attackers to read the contents of arbitrary files on the server, which can contain sensitive information. Exploitation requires a valid purchase_id token, which any user can obtain by making a single low-cost purchase or receiving a shared download link.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user. A successful exploit has high impact on confidentiality.

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Reaching this weakness in Music Store <= 1.4.7 takes no account at all. Path traversal happens when user-controlled text is used to build a filesystem path without being constrained to an intended directory, so sequences like ../ walk the resolved path somewhere else.

Depending on the operation, it means reading files outside the intended folder — wp-config.php being the usual target — or writing to and deleting paths the web server can touch. For Music Store the fix is 1.4.8: builds <= 1.4.7 are affected, anything from 1.4.8 onward is not.

Remediation

Update to version 1.4.8, or a newer patched version

How does WordSec protect against this?

Requests carrying this pattern arrive without a session, so nothing upstream of the firewall gets a chance to reject them: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Music Store 1.4.8 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Login Security
  • Alerts

External References

https://www.wordfence.com/threat-intel/vulnerabilities/id/31e41b8c-f83f-4cd7-a30f-deac6154c7e3

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