The RapiSafe – Secure Multi File Upload for Contact Form 7 plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the handleAjaxRemoveUpload function in all versions up to, and including, 1.0.4. This makes it possible for unauthenticated attackers to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). The nonce required to invoke the removal handler is exposed in public-facing JavaScript as RSMFCF7Vars.nonce on every Contact Form 7 page rendering a RapiSafe upload field, making it obtainable by any unauthenticated visitor.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Weakness Type (CWE)
References 7
https://plugins.trac.wordpress.org/browser/rapisafe-multi-file-cf7/trunk/src/RS…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/rapisafe-multi-file-cf7/trunk/src/RS…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/rapisafe-multi-file-cf7/trunk/src/RS…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/rapisafe-multi-file-cf7/trunk/src/RS…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/rapisafe-multi-file-cf7/trunk/src/RS…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/rapisafe-multi-file-cf7/trunk/src/RS…
security@wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/49f67bbb-cbd0-40ae-ae…
security@wordfence.com