HTMLy Cross Site Scripting
HTMLy - Cross-site Scripting
Advisory ID: RO-18-011
Severity: Medium
Vendor: HTMLy Cross Site Scripting
HTMLy - Cross-site Scripting
Advisory ID: RO-18-011
Severity: Medium
Vendor: HTMLy
Product: HTMLy CMS
Version: *
Overview #
A Cross-site Scripting (XSS) vulnerability exists in HTMLy CMS. The vulnerability allows remote attackers to inject arbitrary web script or HTML.
Vulnerability Details #
Affected Versions: All versions before patch
Root Cause: Insufficient input validation and output encoding allows attackers to inject malicious scripts.
Exploitation Requirements #
No authentication required
Victim must visit a crafted URL or page
Impact #
Remote attackers can exploit this vulnerability to:
Steal admin session cookies
Compromise the CMS installation
Perform actions on behalf of users
Proof of Concept #
Details available upon request.
Solution #
Upgrade to a patched version of HTMLy that includes proper input sanitization.
References #
Vendor notification sent
Timeline:
[2018-01-01] - Discovered
Credits: Omar Kurt