In short
- CVE-2020-26768 is a MEDIUM (CVSS 6.1) vulnerability affecting formstone (formstone), formstone.
- Chance of exploitation in the next 30 days (EPSS): 1.3%, higher than 70.1% of all vulnerabilities.
- Fix: update to 1.4.17 or later.
| Package | Affected versions | Patched versions |
|---|
| formstone | ≤ 1.4.16
| No fix yet |
| formstone npm | < 1.4.17
| 1.4.17
|
Description
Formstone <=1.4.16 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.
NVD description
Formstone <=1.4.16 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.
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