LibreNMS < 26.3.0 Authenticated RCE & XSS
Summary
Searching for unsafe patterns revealed authenticated XSS and RCE in LibreNMS before 26.3.0, including an arbitrary file write path and abuse of configurable binary locations to run code.
- Published
- Collected
--- id: 3719 title: "LibreNMS < 26.3.0 Authenticated RCE & XSS" source_domain: projectblack.io source_url: "https://projectblack.io/blog/librenms-authenticated-rce-and-xss/" published_at: "2026-04-13 10:24" tags: ["rce", "web-security", "xss", "librenms", "authenticated"] phying_url: "https://phying.com/item/3719" lang: en --- # LibreNMS < 26.3.0 Authenticated RCE & XSS ## Summary Searching for unsafe patterns revealed authenticated XSS and RCE in LibreNMS before 26.3.0, including an arbitrary file write path and abuse of configurable binary locations to run code. ## Intelligence Metadata - **Sources:** projectblack.io - **Published:** 2026-04-13 10:24 - **Original:** https://projectblack.io/blog/librenms-authenticated-rce-and-xss/ - **Phying News:** https://phying.com/item/3719