| Title | GitHub nginx-ui 2.x dev branch Authorization Bypass |
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| Description | The regular HTTP configuration API rejects restricted Nginx directives such as load_module, js_import, and js_content.
However, the MCP configuration interface allows a secondary authenticated user to write and apply equivalent restricted configuration content. In the lab, this allowed the user to load ngx_http_js_module.so, import attacker-controlled JavaScript, reload Nginx, and execute NJS in the Nginx worker context.
This is authenticated and is not OS command execution by itself. |
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| Source | ⚠️ https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-5r62-gj48-897x |
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| User | aleff (UID 101079) |
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| Submission | 09/08/2026 15:23 (25 days ago) |
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| Moderation | 10/02/2026 20:33 (24 days later) |
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| Status | Accepted |
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| VulDB entry | 413200 [0xJacky Nginx-UI 2.x MCP Configuration Interface /mcp nginx_config_add authorization] |
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| Points | 20 |
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