CVE-2015-8813 — AI Deep Analysis Summary

🚨 **What is this vulnerability?** * **Type:** Server-Side Request Forgery (SSRF). * **Target:** Umbraco CMS (ASP.NET based). * **Core Issue:** The `FeedProxy.aspx.cs` file trusts user input (`url` parameter) witho…

🛡️ **Root Cause? (CWE/Flaw)** * **Flaw:** Lack of input validation on the `url` parameter in `Page_Load`. * **CWE:** Implicitly CWE-918 (SSRF) due to server-side request manipulation. * **Mechanism:** The applicat…

👥 **Who is affected? (Versions/Components)** * **Product:** Umbraco CMS. * **Affected Versions:** **Before 7.4.0**. * **Specific File:** `Umbraco.Web/umbraco.presentation/umbraco/dashboard/FeedProxy.aspx.cs`. * …

💀 **What can hackers do? (Privileges/Data)** * **Internal Access:** Send GET requests to `127.0.0.1` or internal LAN IPs. * **Data Theft:** Access sensitive internal APIs or databases not exposed to the public inter…

🔓 **Is exploitation threshold high? (Auth/Config)** * **Threshold:** **Low**. * **Auth:** The vulnerability exists in the `FeedProxy.aspx` endpoint.…

💣 **Is there a public Exp? (PoC/Wild Exploitation)** * **Yes.** * **PoC Available:** Publicly available via Nuclei templates and GitHub. * **Example Payload:** `http://<target>/Umbraco/feedproxy.aspx?…

🔍 **How to self-check? (Features/Scanning)** * **Manual Check:** Send a request to `/Umbraco/feedproxy.aspx?…

🔧 **Is it fixed officially? (Patch/Mitigation)** * **Yes.** * **Fix Version:** **Umbraco 7.4.0** and later. * **Commit:** Fixed in commit `924a016ffe7ae7ea6d516c07a7852f0095eddbce`. * **Action:** Upgrade to vers…

🚧 **What if no patch? (Workaround)** * **Block Access:** Restrict access to `/umbraco/dashboard/FeedProxy.aspx` via WAF or firewall rules. * **Input Validation:** If custom code is possible, validate the `url` param…

⚡ **Is it urgent? (Priority Suggestion)** * **Priority:** **High**. * **Reason:** SSRF allows bypassing network boundaries.…