Add vpatch-CVE-2025-1661 rule and test

[crowdsec-automation]

This rule detects exploitation attempts for CVE-2025-1661, an unauthenticated local file inclusion (LFI) vulnerability in the HUSKY Products Filter Professional for WooCommerce WordPress plugin. The attack is performed by sending a POST request to /wp-admin/admin-ajax.php with the template parameter containing directory traversal sequences (e.g., ../../..).

• The first rule condition matches requests to the vulnerable endpoint /wp-admin/admin-ajax.php, using lowercase and urldecode transforms to ensure normalization and case insensitivity.
• The second rule condition targets the template argument in the query string, again normalizing with lowercase and urldecode, and matches if it contains the directory traversal pattern '../'.
• This approach minimizes false positives by focusing only on the relevant parameter and pattern, as per best practices for LFI detection.

The test config and nuclei template simulate the attack and expect a 403 response, confirming the rule's blocking behavior.

Validation Checklist:

• All value: fields are lowercase.
• All relevant transforms include lowercase and urldecode.
• No match.value contains capital letters.
• The rule uses contains instead of regex for the traversal pattern.

[github-actions]

Hello @crowdsec-automation and thank you for your contribution!

❗ It seems that the following scenarios are not part of the 'crowdsecurity/appsec-virtual-patching' collection:

🔴 crowdsecurity/vpatch-CVE-2025-1661 🔴

[github-actions]

Hello @crowdsec-automation and thank you for your contribution!

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Mitre ATT&CK

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• T1595 and T1190 for exploitation of public vulnerabilities
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