This is a summary of the AI-generated 10-question deep analysis. The full version (longer answers, follow-up Q&A, related CVEs) requires login. Read the full analysis β
Q1What is this vulnerability? (Essence + Consequences)
π¨ **Essence**: DNN CMS has a **Cross-Site Scripting (XSS)** flaw. π¨ **Consequences**: Attackers can inject malicious scripts via the **Prompt module**.β¦
π‘οΈ **Root Cause**: **CWE-79** (Improper Neutralization of Input). π‘οΈ **Flaw**: The **Prompt module** fails to sanitize **raw HTML** returned by commands. It allows execution of untrusted scripts directly in the browser.β¦
π¦ **Affected**: **DNN (DotNetNuke)** CMS. π¦ **Versions**: All versions **prior to 10.1.0**. π’ **Vendor**: DNN Software (US). π» **Platform**: ASP.NET based. β οΈ Check your version number immediately!
Q4What can hackers do? (Privileges/Data)
π **Hackers Can**: Execute arbitrary JavaScript in victim's browser. π **Privileges**: Act as the logged-in user. π **Data**: Steal **cookies**, **tokens**, or **sensitive content**.β¦
π΅οΈ **Public Exp?**: **No PoC provided** in data. π΅οΈ **Wild Exp**: Unconfirmed. π **Source**: GitHub Advisory (GHSA-2qxc-mf4x-wr29). π **Published**: 2025-09-23. β οΈ Assume it *could* be exploited if the module is active.
Q7How to self-check? (Features/Scanning)
π **Self-Check**: Scan for **DNN CMS** signatures. π **Feature**: Look for active **Prompt module** usage. π **Tools**: Use DAST scanners for **XSS** in input fields. π **Verify**: Check version < **10.1.0**.β¦
π§ **No Patch?**: Disable the **Prompt module** entirely. π§ **Workaround**: Implement **strict input validation** and **output encoding** (HTML Entity Encode). π§ **WAF**: Block raw HTML tags in POST requests.β¦