CVE-2020-26768

CVE-2020-26768

npm/formstone

Cross-site Scripting

Formstone is vulnerable to a Reflected Cross-Site Scripting (XSS) vulnerability caused by improper validation of user supplied input in the upload-target.php and upload-chunked.php files. A remote attacker could exploit this vulnerability using a specially crafted URL to execute a script in a victim's Web browser within the security context of the hosting Web site once the URL is clicked or visited. An attacker could use this vulnerability to steal the victim's cookie-based authentication credentials, force malware execution, user redirection and others.

All versions up to 1.4.16

Upgrade to version 1.4.17 or above.

2021-01-13