What’s Vulnerable › Vulnerabilities

CVE-2023-6559: MW WP Form <= 5.0.3 - Improper Limitation of File Name to Unauthenticated Arbitrary File Deletion

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-12-16 · updated 2026-06-17
• Weakness: CWE-22

Description

The MW WP Form plugin for WordPress is vulnerable to arbitrary file deletion in all versions up to, and including, 5.0.3. This is due to the plugin not properly validating the path of an uploaded file prior to deleting it. This makes it possible for unauthenticated attackers to delete arbitrary files, including the wp-config.php file, which can make site takeover and remote code execution possible.

Affected products

• websoudan MW WP Form: before 5.0.4 — fixed in 5.0.4

How to fix

Upgrade to a fixed version: websoudan MW WP Form 5.0.4. Check the vendor advisory for mitigations.

References

• https://plugins.trac.wordpress.org/changeset/3007879/mw-wp-form
• https://www.wordfence.com/threat-intel/vulnerabilities/id/412d555c-9bbd-42f5-8020-ccfc18755a79?source=cve
• https://plugins.trac.wordpress.org/changeset/3007879/mw-wp-form
• https://www.wordfence.com/threat-intel/vulnerabilities/id/412d555c-9bbd-42f5-8020-ccfc18755a79?source=cve

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