How severe is CVE-2015-4029?

CVE-2015-4029 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2015-4029 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 20% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-4029?

CVE-2015-4029 affects Netgate Pfsense. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-4029?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2015-4029 published?

CVE-2015-4029 was published on 2015-08-18 and last updated on 2026-06-17.

CVE-2015-4029

CVE-2015-4029 is a medium-severity vulnerability in Netgate Pfsense with a CVSS 2.0 base score of 4.3. Its EPSS exploit-prediction score of 20% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 20% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Netgate Pfsense
Published: 2015-08-18
Last modified: 2026-06-17

Description

Cross-site scripting (XSS) vulnerability in the WebGUI in pfSense before 2.2.3 allows remote attackers to inject arbitrary web script or HTML via the zone parameter in a del action to services_captiveportal_zones.php.

Frequently asked questions

What is CVE-2015-4029?: Cross-site scripting (XSS) vulnerability in the WebGUI in pfSense before 2.2.3 allows remote attackers to inject arbitrary web script or HTML via the zone parameter in a del action to services_captiveportal_zones.php.
How severe is CVE-2015-4029?: CVE-2015-4029 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2015-4029 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 20% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-4029?: CVE-2015-4029 affects Netgate Pfsense. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-4029?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-4029 published?: CVE-2015-4029 was published on 2015-08-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:netgate:pfsense:*:*:*:*:*:*:*:*

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