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Q1What is this vulnerability? (Essence + Consequences)
π¨ **What is this vulnerability?** XWiki Platform has a critical security flaw in its REST API. It exposes the **full history** of any page, even private ones.β¦
π‘οΈ **Root Cause? (CWE/Flaw)** - **CWE-862**: Missing Authorization. - The REST API endpoint **ignores access rights**. - It returns data regardless of whether the user has permission to view the page content.β¦
π₯ **Who is affected? (Versions/Components)** - **Vendor:** XWiki. - **Product:** XWiki Platform. - **Scope:** Any instance using the vulnerable REST API endpoints. - **Note:** Check your version against the official advβ¦
π΅οΈ **What can hackers do? (Privileges/Data)** - **No Auth Required:** You donβt need to be logged in. - **Data Exposed:** - Modification times. - Version numbers. - **Author Details:** Username & Display Name. -β¦
π£ **Is there a public Exp? (PoC/Wild Exploitation)** - **Yes.** - A Nuclei template is available on GitHub (ProjectDiscovery). - Automated scanning tools can detect this easily. - Wild exploitation is likely given the β¦
π **How to self-check? (Features/Scanning)** - **Scan:** Use Nuclei with the CVE-2024-45591 template. - **Manual Check:** 1. Identify a page name. 2. Call the REST API history endpoint. 3.β¦
π§ **Is it fixed officially? (Patch/Mitigation)** - **Yes.** - XWiki has released fixes (see GitHub commits & Jira XWIKI-22052). - **Action:** Update to the latest patched version immediately. - Reference: GHSA-pvmm-55rβ¦
π§ **What if no patch? (Workaround)** - **Restrict API Access:** Block access to the specific REST API endpoints via WAF or Nginx. - **Network Segmentation:** Ensure XWiki is not directly exposed to the internet. - **Monβ¦
β‘ **Is it urgent? (Priority Suggestion)** - **Priority: HIGH** π΄. - **CVSS Score:** 5.3 (Medium), but impact is high for privacy. - **Why Urgent?β¦