QuickCMS is vulnerable to Stored XSS via sDescriptionMeta parameter in page editor SEO functionality. Malicious attacker with admin privileges can inject arbitrary HTML and JS into website, which will be rendered/executed when visiting edited page. By default admin user is not able to add JavaScript into the website.
The vendor was notified early about this vulnerability, but didn't respond with the details of vulnerability or vulnerable version range. Only version 6.8 was tested and confirmed as vulnerable, other versions were not tested and might also be vulnerable.
                
            References
                    | Link | Resource | 
|---|---|
| https://cert.pl/posts/2025/08/CVE-2025-54540 | Third Party Advisory | 
| https://opensolution.org | Product | 
Configurations
                    History
                    08 Sep 2025, 16:56
| Type | Values Removed | Values Added | 
|---|---|---|
| References | () https://cert.pl/posts/2025/08/CVE-2025-54540 - Third Party Advisory | |
| References | () https://opensolution.org - Product | |
| CVSS | 
        v2 :  v3 :  | 
    
        v2 : unknown
         v3 : 4.8  | 
| CPE | cpe:2.3:a:opensolution:quick.cms:6.8:*:*:*:*:*:*:* | |
| First Time | 
        
        Opensolution
         Opensolution quick.cms  | 
28 Aug 2025, 11:15
| Type | Values Removed | Values Added | 
|---|---|---|
| New CVE | 
Information
                Published : 2025-08-28 11:15
Updated : 2025-09-08 16:56
NVD link : CVE-2025-54543
Mitre link : CVE-2025-54543
CVE.ORG link : CVE-2025-54543
JSON object : View
Products Affected
                opensolution
- quick.cms
 
CWE
                
                    
                        
                        CWE-79
                        
            Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
