CVE-2025-62365 LibreNMS vulnerable to Reflected-XSS in `report_this` function

What is CVE-2025-62365?

CVE-2025-62365 is a medium-severity cross-site scripting vulnerability in Librenms Librenms, published on 13 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

LibreNMS is an open-source, PHP/MySQL/SNMP-based network monitoring system. Prior to 25.7.0, there is a reflected-XSS in `report_this` function in `librenms/includes/functions.php`. The `report_this` function had improper filtering (`htmlentities` function was incorrectly use in a href environment), which caused the `project_issues` parameter to trigger an XSS vulnerability. This vulnerability is fixed in 25.7.0.

Weakness: CWE-79

Which versions are affected by CVE-2025-62365?

2 open source packages ship an affected version, including librenms/librenms. It affects 1 product.

Products include Librenms Librenms.

How do I fix CVE-2025-62365?

Upgrade librenms/librenms to 25.7.0 or later.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2025-62365 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-62365 exists.

Other vulnerabilities in Librenms Librenms

• CVE-2023-4982 Cross-site Scripting (XSS) - Stored in librenms/librenms Critical 9.8
• CVE-2022-29712 Command injection in librenms Critical 9.8
• CVE-2021-44278 Path traversal in librenms/librenms Critical 9.8
• CVE-2019-10665 LibreNMS Information Disclosure Critical 9.8
• CVE-2018-20434 LibreNMS arbitrary OS commands execution Critical 9.8

All Librenms Librenms vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-86rg-8hc8-v82p.