Vulnerability · Published Jan 7, 2021 · Assigned by mitre
CVE-2020-26768
Medium 6.1
In plain English
A medium-severity security flaw in the formstone package (npm). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 70% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | formstone | 1.4.17 | GHSA-wc29-h54q-q8qx |
Affected products (as reported)
References
- https://github.com/Formstone/Formstone/issues/286 x_refsource_MISC