OpenSTAManager is an open source management software for technical assistance and invoicing. OpenSTAManager v2.9.8 and earlier contain a critical Time-Based Blind SQL Injection vulnerability in the article pricing completion handler. The application fails to properly sanitize the idarticolo parameter before using it in SQL queries, allowing attackers to inject arbitrary SQL commands and extract sensitive data through time-based Boolean inference.

Affected: Packagist: devcode-it/openstamanager

### Summary

Critical Time-Based Blind SQL Injection vulnerability in the article pricing module of OpenSTAManager v2.9.8 allows authenticated attackers to extract complete database contents including user credentials, customer data, and financial records through time-based Boolean inference attacks.

**Status:** ✅ Confirmed and tested on live instance (v2.9.8) end [demo.osmbusiness.it](https://demo.osmbusiness.it/) (v2.9.7) **Vulnerable Parameter:** `idarticolo` (GET) **Affected Endpoint:** `/ajax_complete.php?op=getprezzi` **Affected Module:** Articoli (Articles/Products)

### Details

OpenSTAManager v2.9.8 contains a critical Time-Based Blind SQL Injection vulnerability in the article pricing completion handler. The application fails to properly sanitize the `idarticolo` parameter before using it in SQL queries, allowing attackers to inject arbitrary SQL commands and extract sensitive data through time-based Boolean inference.

**Vulnerability Chain:**

1. **Entry Point:** `/ajax_complete.php` (Line 27) ```php $op = get('op'); $result = AJAX::complete($op); ``` The `op` parameter is retrieved but the vulnerability lies in other parameters.

2. **Distribution:** `/src/AJAX.php::complete()` (Line 189) ```php $result = self::getCompleteResults($file, $resource); ```

3. **Execution:** `/src/AJAX.php::getCompleteResults()` (Line 402) ```php require $file; ``` Module-specific complete.php files are included.

4. **Vulnerable Parameter:** `/m…