CVE-2015-6511

Name: CVE-2015-6511
Creator: NVD / NIST
Published: 2015-08-18T15:59:10.923+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.05%

Last modified Jun 17, 2026

CVE-2015-6511 is a vulnerability of currently unknown severity. Cross-site scripting (XSS) vulnerability in pfSense before 2.2.3 allows remote attackers to inject arbitrary web script or HTML via the server[] parameter to services_ntpd.php.. EPSS estimates a 2.05% chance of exploitation in the next 30 days.

Description

Cross-site scripting (XSS) vulnerability in pfSense before 2.2.3 allows remote attackers to inject arbitrary web script or HTML via the server[] parameter to services_ntpd.php.

Metrics

EPSS Probability

2.05%

78.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Netgate	Pfsense	<= 2.2.2

References

https://www.pfsense.org/security/advisories/pfSense-SA-15_06.webgui.ascVendor Advisory
https://www.pfsense.org/security/advisories/pfSense-SA-15_06.webgui.ascVendor Advisory

Timeline

Published: Aug 18, 2015
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-6511?

Cross-site scripting (XSS) vulnerability in pfSense before 2.2.3 allows remote attackers to inject arbitrary web script or HTML via the server[] parameter to services_ntpd.php.

How severe is CVE-2015-6511?

Severity scoring for CVE-2015-6511 is pending analysis. The EPSS model estimates a 2.05% probability of exploitation in the next 30 days.

How do I fix CVE-2015-6511?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-6511?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST