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GHSA-86rg-8hc8-v82p librenms/librenms

Fix: librenms/librenms@30d3dd7

GHSA-86rg-8hc8-v82p is a Cross-site Scripting (XSS) vulnerability in librenms/librenms. A fix is available for librenms/librenms — see the affected versions and patch details below.

LibreNMS is vulnerable to Reflected-XSS in `report_this` function

Also known asCVE-2025-62365
Published
Oct 13, 2025
Updated
Oct 14, 2025
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Sep 21, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

Proof-of-concept exploit code exists

  • CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.

Exploitation and automatability from CISA’s SSVC triage for GHSA-86rg-8hc8-v82p.

EPSS Exploitation Probability

via FIRST.org ↗
0.2%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs16th percentile — riskier than 16% of all scored CVEsHighest risk

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Real-World Exposure

1 pkg affected
🐘librenms/librenms

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

Summary

Reflected-XSS in report_this function in librenms/includes/functions.php

Details

Recently, it was discovered that the report_this function had improper filtering (htmlentities function was incorrectly used in a href environment), which caused the project_issues parameter to trigger an XSS vulnerability.

The Vulnerable Sink: https://github.com/librenms/librenms/blob/master/includes/functions.php#L444

PoC

GET project_issues=javascript:alert(document.cookie)

Impact

XSS vulnerabilities allow attackers to execute malicious scripts in users' browsers, enabling unauthorized access to sensitive data, session hijacking, or malware distribution.

Suggestion

It is recommended to filter dangerous protocols, e.g. javascript:/file:.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistlibrenms/librenmsall versions25.7.0composer require librenms/librenms:^25.7.0

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for librenms/librenms, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update librenms/librenms to 25.7.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-86rg-8hc8-v82p is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-86rg-8hc8-v82p can be triaged on real exposure rather than presence alone.

Tailored to GHSA-86rg-8hc8-v82p. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

### Summary Reflected-XSS in `report_this` function in `librenms/includes/functions.php` ### Details Recently, it was discovered that the `report_this` function had improper filtering (`htmlentities` function was incorrectly used in a href environment), which caused the `project_issues` parameter to trigger an XSS vulnerability. The Vulnerable Sink: https://github.com/librenms/librenms/blob/master/includes/functions.php#L444 ### PoC GET `project_issues=javascript:alert(document.cookie)` ### Impact XSS vulnerabilities allow attackers to execute malicious scripts in users' browsers, enablin
O3 Security · Impact-Aware SCA

Is GHSA-86rg-8hc8-v82p in your dependencies?

O3 Security finds GHSA-86rg-8hc8-v82p across Packagist dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

GHSA-86rg-8hc8-v82p: librenms/librenms XSS | O3 Security