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**Name of the Vulnerable Software and Affected Versions** Tosei Online Store Management System versions 4.02 through 4.04 **Description** A critical issue affects some unknown functionality of the file /cgi-bin/p1 ftpserver.php. The manipulation of the `adr txt` argument leads to command injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted about this disclosure but did not respond. **Recommendations** For versions 4.02 through 4.04, as a temporary workaround, consider restricting access to the /cgi-bin/p1 ftpserver.php file until a patch is available. Avoid using the `adr txt` argument in the affected file to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this issue.

**Name of the Vulnerable Software and Affected Versions** Tosei Online Store Management System versions 4.02 through 4.04 **Description** A critical issue has been discovered, affecting an unknown part of the file /cgi-bin/tosei kikai.php. The manipulation of the `kikaibangou` argument leads to command injection, allowing for remote attacks. The exploit has been publicly disclosed, and the vendor was contacted but did not respond. **Recommendations** For versions 4.02 through 4.04, as a temporary workaround, consider restricting access to the /cgi-bin/tosei kikai.php file until a patch is available. Avoid using the `kikaibangou` argument in the affected file to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this issue.

**Name of the Vulnerable Software and Affected Versions** Tosei Online Store Management System versions 4.02 through 4.04 **Description** A critical vulnerability was found in the Backend component of the system, allowing for the use of default credentials. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted about this disclosure but did not respond. **Recommendations** For versions 4.02 through 4.04, consider changing default credentials to custom ones as a temporary workaround until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.