Dynamic Font Replacement DFR4WP EN <= 1.3 EN - Arbitrary File Deletion
Strategic Overview
- Status
- Unpatched
- Affected Plugin
- Dynamic Font Replacement DFR4WP EN
- Affected Version
<= 1.3 EN- CVSS
- 9.8Critical
- Weakness type
- CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
- CVE
CVE pending
At a glance
This record tracks a critical-severity Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in the Dynamic Font Replacement DFR4WP EN WordPress plugin, affecting versions <= 1.3 EN. It carries a CVSS score of 9.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. No fixed release has been reported yet; treat installations running this software as exposed. Disclosed July 2022.
Vulnerability Overview
The Dynamic Font Replacement DFR4WP EN plugin for WordPress is vulnerable to arbitrary file deletion in versions up to , and including 1.3 EN due to insufficient file path validation in the ~/admin/filedelete.php file that can be directly accessed by unauthenticated users. This makes it possible for unauthenticated attackers to delete arbitrary files from the filesystem, including the wp-config.php file that makes it possible for attackers to achieve remote code execution once deleted.
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, integrity, availability — full site compromise territory.
CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Reaching this weakness in Dynamic Font Replacement DFR4WP EN <= 1.3 EN takes a caller who can reach the endpoint. 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. No fixed build of this plugin is recorded for Dynamic Font Replacement DFR4WP EN yet, so installs running <= 1.3 EN stay exposed until the vendor ships one.
Remediation
No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
How does WordSec protect against this?
The attempt arrives as an ordinary request to Dynamic Font Replacement DFR4WP EN: WordSec's web application firewall inspects request payloads before WordPress loads them. No patched version is recorded yet, which is the case where a filtering layer matters most, because there is nothing to update to.
- Firewall
- Alerts
External References
Related records
Other vulnerabilities in Dynamic Font Replacement DFR4WP EN
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