How severe is CVE-2017-17947?

CVE-2017-17947 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2017-17947 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-17947?

CVE-2017-17947 affects Pulsesecure Pulse Connect Secure. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-17947?

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

When was CVE-2017-17947 published?

CVE-2017-17947 was published on 2018-01-16 and last updated on 2026-06-17.

CVE-2017-17947

CVE-2017-17947 is a medium-severity vulnerability in Pulsesecure Pulse Connect Secure with a CVSS 3.x base score of 4.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 4.8)
CVSS v2: 3.5
EPSS exploit prediction: 1% (39th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Pulsesecure Pulse Connect Secure
Published: 2018-01-16
Last modified: 2026-06-17

Description

A cross site scripting issue has been found in custompage.cgi in Pulse Secure Pulse Connect Secure (PCS) before 8.0R17.0, 8.1.x before 8.1R13, 8.2.x before 8.2R9, and 8.3.x before 8.3R3 and Pulse Policy Secure (PPS) before 5.2R10, 5.3.x before 5.3R9, and 5.4.x before 5.4R3 due to one of the URL parameters not being sanitized. Exploitation does require the user to be logged in as administrator; the issue is not applicable to the end user portal.

Frequently asked questions

What is CVE-2017-17947?: A cross site scripting issue has been found in custompage.cgi in Pulse Secure Pulse Connect Secure (PCS) before 8.0R17.0, 8.1.x before 8.1R13, 8.2.x before 8.2R9, and 8.3.x before 8.3R3 and Pulse Policy Secure (PPS) before 5.2R10, 5.3.x before 5.3R9, and 5.4.x before 5.4R3 due to one of the URL parameters not being sanitized. Exploitation does require the user to be logged in as administrator; the issue is not applicable to the end user portal.
How severe is CVE-2017-17947?: CVE-2017-17947 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2017-17947 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-17947?: CVE-2017-17947 affects Pulsesecure Pulse Connect Secure. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-17947?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-17947 published?: CVE-2017-17947 was published on 2018-01-16 and last updated on 2026-06-17.

References

http://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA43018

Affected products (1)

cpe:2.3:a:pulsesecure:pulse_connect_secure:*:*:*:*:*:*:*:*

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