How severe is CVE-2019-11543?

CVE-2019-11543 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2019-11543 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-11543?

CVE-2019-11543 primarily affects Ivanti Connect Secure. In total, 44 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-11543?

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

When was CVE-2019-11543 published?

CVE-2019-11543 was published on 2019-04-26 and last updated on 2026-06-17.

CVE-2019-11543

CVE-2019-11543 is a medium-severity vulnerability in Ivanti Connect Secure with a CVSS 3.x base score of 6.1. 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 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Ivanti Connect Secure
Published: 2019-04-26
Last modified: 2026-06-17

Description

XSS exists in the admin web console in Pulse Secure Pulse Connect Secure (PCS) 9.0RX before 9.0R3.4, 8.3RX before 8.3R7.1, and 8.1RX before 8.1R15.1 and Pulse Policy Secure 9.0RX before 9.0R3.2, 5.4RX before 5.4R7.1, and 5.2RX before 5.2R12.1.

Frequently asked questions

What is CVE-2019-11543?: XSS exists in the admin web console in Pulse Secure Pulse Connect Secure (PCS) 9.0RX before 9.0R3.4, 8.3RX before 8.3R7.1, and 8.1RX before 8.1R15.1 and Pulse Policy Secure 9.0RX before 9.0R3.2, 5.4RX before 5.4R7.1, and 5.2RX before 5.2R12.1.
How severe is CVE-2019-11543?: CVE-2019-11543 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2019-11543 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-11543?: CVE-2019-11543 primarily affects Ivanti Connect Secure. In total, 44 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-11543?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-11543 published?: CVE-2019-11543 was published on 2019-04-26 and last updated on 2026-06-17.

References

Affected products (44)

cpe:2.3:a:ivanti:connect_secure:8.1:*:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:8.3:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_connect_secure:8.1r1.0:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_connect_secure:8.1rx:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_connect_secure:8.3rx:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.0r1:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.0r2:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.0r2.1:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.0r3:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.0r3.1:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.0r3.2:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_connect_secure:9.0rx:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_policy_secure:5.2r1.0:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_policy_secure:5.2r2.0:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_policy_secure:5.2r3.0:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_policy_secure:5.2r3.2:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_policy_secure:5.2r4.0:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_policy_secure:5.2r5.0:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_policy_secure:5.2r6.0:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_policy_secure:5.2r7.0:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_policy_secure:5.2r7.1:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_policy_secure:5.2r8.0:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_policy_secure:5.2r9.0:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_policy_secure:5.2r9.1:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_policy_secure:5.2r10.0:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_policy_secure:5.2r11.0:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_policy_secure:5.2rx:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_policy_secure:5.4r1:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_policy_secure:5.4r2:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_policy_secure:5.4r2.1:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_policy_secure:5.4r3:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_policy_secure:5.4r4:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_policy_secure:5.4r5:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_policy_secure:5.4r5.2:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_policy_secure:5.4r6:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_policy_secure:5.4r6.1:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_policy_secure:5.4r7:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_policy_secure:5.4rx:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_policy_secure:9.0r1:*:*:*:*:*:*:*
cpe:2.3:a:pulsesecure:pulse_policy_secure:9.0r2:*:*:*:*:*:*:*

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