CVE-2020-26768

Medium

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.

SeverityMedium
CVSS6.1
Exploit probability—
ProductFormstone
PublishedJan 7, 2021
First seenJan 7, 2021

How to fix

Update
  • formstone1.4.17 or later

Affected products

ProductAffected versionsFixed in
formstone formstonev ≤ 1.4.16—
formstonenpmv < 1.4.171.4.17

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CVE-2020-26768 · Formstone · Dark Radar