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**Name of the Vulnerable Software and Affected Versions** Tongda OA 2017 up to 11.9 **Description** A critical vulnerability has been found in Tongda OA, related to the file general/system/censor words/module/delete.php. The issue is due to the lack of protection against SQL injection when handling the `DELETE STR` parameter. This allows an attacker to execute arbitrary SQL queries. The exploit has been disclosed publicly. **Recommendations** For Tongda OA 2017 up to 11.9, upgrade to version 11.10 to address this issue. As a temporary workaround, consider restricting access to the `delete.php` file or the `DELETE STR` parameter to minimize the risk of exploitation.