CVE-2023-26255 — AI Deep Analysis Summary

🚨 **Essence**: A Path Traversal vulnerability in the **STAGIL Navigation** plugin for Atlassian Jira. <br>💥 **Consequences**: Attackers can traverse the file system and **read arbitrary files** from the server.…

🛡️ **Root Cause**: Improper handling of the `fileName` parameter in the `snjCustomDesignConfig` endpoint.…

📦 **Affected Product**: Atlassian Jira Plugin: **STAGIL Navigation for Jira Menus & Themes**. <br>📉 **Versions**: Versions **before 2.0.52** are vulnerable. If you are running 2.0.51 or older, you are at risk.

🕵️ **Attacker Actions**: <br>1. **Read Files**: Access sensitive configuration files, logs, or source code. <br>2. **Inject Scripts**: Potentially inject arbitrary scripts into the browser context. <br>3.…

⚖️ **Exploitation Threshold**: **Low to Medium**. <br>🔑 **Auth**: Requires access to the Jira instance. <br>⚙️ **Config**: Exploitation relies on manipulating the `fileName` parameter.…

💣 **Public Exploits**: **YES**. <br>🔗 Multiple PoCs are available on GitHub (e.g., `CVE-2023-26255-Exp`, `CVE-2023-26255-6`). <br>📜 Nuclei templates also exist for automated scanning.…

🔍 **Self-Check Methods**: <br>1. **Manual**: Send a request to `/snjCustomDesignConfig` with a malicious `fileName` parameter (e.g., `../../etc/passwd`). <br>2.…

🩹 **Official Fix**: **YES**. <br>✅ **Patch**: Update the STAGIL Navigation plugin to version **2.0.52** or later. <br>📢 Check the Atlassian Marketplace for the latest version to ensure the vulnerability is resolved.

🚧 **No Patch Workaround**: <br>1. **Disable Plugin**: Temporarily disable the STAGIL Navigation plugin if not critical. <br>2.…

⚡ **Urgency**: **HIGH**. <br>🔥 **Priority**: Immediate action required. <br>📝 **Reason**: Public exploits are available, and the impact includes file reading and potential script injection.…