Snow Monkey Forms <= 12.0.3 - Unauthenticated Arbitrary File Deletion via Path Traversal
Strategic Overview
- Status
- Patched in 12.0.4
- Affected Plugin
- Snow Monkey Forms
- Affected Version
<= 12.0.3- CVSS
- 9.8Critical
- Weakness type
- CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
- CVE
CVE-2026-1056
At a glance
CVE-2026-1056 is a critical-severity Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in the Snow Monkey Forms WordPress plugin, affecting versions <= 12.0.3. It carries a CVSS score of 9.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 12.0.4; sites on affected versions should update now. Disclosed January 2026, reported by Sarawut Poolkhet (MisterHelloz).
Vulnerability Overview
The Snow Monkey Forms plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the 'generate_user_dirpath' function in all versions up to, and including, 12.0.3. 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).
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')
Snow Monkey Forms <= 12.0.3 carries this weakness at generate_user_dirpath, and reaching it 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 Snow Monkey Forms the fix is 12.0.4: builds <= 12.0.3 are affected, anything from 12.0.4 onward is not.
Remediation
Update to version 12.0.4, 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: Snow Monkey Forms 12.0.4 closes this, and updating the plugin is the step that ends it.
- Firewall
- Login Security
- Alerts
External References
Related records
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