Reflected cross-site scripting vulnerability exists in multiple versions of PowerCMS. If a product administrator accesses a crafted URL, an arbitrary script may be executed on the browser.

Stored cross-site scripting vulnerability exists in multiple versions of PowerCMS. If a product user accesses a malicious page, an arbitrary script may be executed on the browser.

A path traversal issue exists in file uploading feature of multiple versions of PowerCMS. Arbitrary files may be overwritten by a product user.

A path traversal issue exists in backup and restore feature of multiple versions of PowerCMS. A product administrator may execute arbitrary code by restoring a crafted backup file.

Multiple versions of PowerCMS improperly neutralize formula elements in a CSV file. If a product user creates a malformed entry and a victim user downloads it as a CSV file and opens it in the user's environment, the embedded code may be executed.

Multiple versions of PowerCMS allow unrestricted upload of dangerous files. If a product administrator accesses a malicious file uploaded by a product user, an arbitrary script may be executed on the browser.

The affected versions of PowerCMS allow HTTP header injection. This vulnerability can be leveraged to direct the affected product to send email with a tampered URL, such as password reset mail.

Open redirect vulnerability in PowerCMS (6 Series, 5 Series, and 4 Series) allows a remote unauthenticated attacker to redirect users to arbitrary web sites via a specially crafted URL. Note that all versions of PowerCMS 3 Series and earlier which are unsupported (End-of-Life, EOL) are also affected by this vulnerability.

PowerCMS (6 Series, 5 Series, and 4 Series) contains a stored cross-site scripting vulnerability. If this vulnerability is exploited, an arbitrary script may be executed on a logged-in user's web browser. Note that all versions of PowerCMS 3 Series and earlier which are unsupported (End-of-Life, EOL) are also affected by this vulnerability.

PowerCMS XMLRPC API provided by Alfasado Inc. contains a command injection vulnerability. Sending a specially crafted message by POST method to PowerCMS XMLRPC API may allow arbitrary Perl script execution, and an arbitrary OS command may be executed through it. Affected products/versions are as follows: PowerCMS 6.021 and earlier (PowerCMS 6 Series), PowerCMS 5.21 and earlier (PowerCMS 5 Series), and PowerCMS 4.51 and earlier (PowerCMS 4 Series). Note that all versions of PowerCMS 3 Series and earlier which are unsupported (End-of-Life, EOL) are also affected by this vulnerability.

PowerCMS XMLRPC API of PowerCMS 5.19 and earlier, PowerCMS 4.49 and earlier, PowerCMS 3.295 and earlier, and PowerCMS 2 Series (End-of-Life, EOL) allows a remote attacker to execute an arbitrary OS command via unspecified vectors.

Open redirect vulnerability in PowerCMS 5.12 and earlier (PowerCMS 5.x), 4.42 and earlier (PowerCMS 4.x), and 3.293 and earlier (PowerCMS 3.x) allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a specially crafted URL.