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How the CVE Works
The SureForms WordPress plugin (versions ≤ 1.7.3) is vulnerable to PHP Object Injection due to improper input validation in the `delete_entry_files()` function. The function uses `file_exists()` without restricting the path parameter, allowing unauthenticated attackers to inject serialized PHP objects. While the plugin lacks a viable Property-Oriented Programming (POP) chain, exploitation becomes critical if another plugin/theme introduces one. Successful exploitation could lead to arbitrary file deletion, data exposure, or remote code execution, depending on the available POP chain.
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Platform: WordPress
Version: ≤ 1.7.3
Vulnerability: PHP Object Injection
Severity: Critical
Date: 07/11/2025
Prediction: Patch by 08/15/2025
What Undercode Say
Analytics:
Check plugin version wp plugin list --name=SureForms Exploit PoC (hypothetical) curl -X POST "http://target/wp-admin/admin-ajax.php" -d "action=delete_entry_files&path=phar://malicious.zip" Mitigation command wp plugin update SureForms --version=1.7.4
How Exploit
- Craft serialized payload with POP chain (if present).
2. Trigger `delete_entry_files` via unauthenticated AJAX.
3. Leverage `file_exists()` to deserialize payload.
Protection from this CVE
1. Update plugin post-patch.
2. Remove unused plugins/themes.
3. Disable PHP object serialization.
Impact
- Arbitrary file deletion.
- Remote code execution.
- Data leakage.
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
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