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CVE-2025-62365

LibreNMS vulnerable to Reflected-XSS in `report_this` function

5.5 MediumFix available

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
None

Exploit likelihood

0.25%Up 0.2 points since Oct 14, 2025
90%50%10%1%

What each source reports

CVE List Score used 5.5

LibreNMS vulnerable to Reflected-XSS in `report_this` function

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.

Record
CVE-2025-62365
CVSS 4.0
5.5 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P
Weakness
CWE-79
Updated
2026-11-02
EUVDEUVD-2025-34114 5.5

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.

Record
EUVD-2025-34114
CVSS 4.0
5.5 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P
Updated
2026-11-02
GitHub AdvisoriesGHSA-86rg-8hc8-v82p 5.5

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

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:.

Record
GHSA-86rg-8hc8-v82p
CVSS 4.0
5.5 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P
Weakness
CWE-79
Updated
2026-11-02
NVD 5.5

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.

Record
CVE-2025-62365
CVSS 4.0
5.5 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
OSV 5.5

LibreNMS vulnerable to Reflected-XSS in `report_this` function

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.

Record
CVE-2025-62365
CVSS 4.0
5.5 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P
Weakness
CWE-79
Updated
2026-11-02
OSVGHSA-86rg-8hc8-v82p 5.5

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

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:.

Record
GHSA-86rg-8hc8-v82p
CVSS 4.0
5.5 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P
Weakness
CWE-79
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
librenms/librenms
Packagist
 through 25.6.0
25.7.0
librenms/librenms
Packagist
 before 25.7.0, plus listed versions
1.191.201.20.11.211.22
Show 45 moreShow less
1.22.011.231.241.251.261.271.281.291.301.30.011.311.31.011.31.021.31.031.321.32.011.331.33.011.341.351.361.36.011.371.381.391.401.411.421.42.011.431.441.451.461.471.481.48.11.491.501.50.11.511.521.531.53.11.541.55
25.7.0

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-62365 is a medium vulnerability (CVSS 5.5) in Librenms, published October 13, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.25%, the 16th percentile. Fixed in librenms/librenms 25.7.0.

References

This page doesn't list everything

Left out here: 90 versions. The JSON record has them.

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