How severe is CVE-2019-17330?

CVE-2019-17330 has a CVSS 3.x base score of 9.6, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-17330 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-17330?

CVE-2019-17330 primarily affects Tibco Ebx. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-17330?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2019-17330 published?

CVE-2019-17330 was published on 2019-11-12 and last updated on 2026-06-17.

CVE-2019-17330

CVE-2019-17330 is a critical-severity vulnerability in Tibco Ebx with a CVSS 3.x base score of 9.6. 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: Critical (CVSS 3.x base score 9.6)
CVSS v2: 4.3
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Tibco Ebx
Published: 2019-11-12
Last modified: 2026-06-17

Description

The Web server component of TIBCO Software Inc.'s TIBCO EBX contains multiple vulnerabilities that theoretically allow authenticated users to perform stored cross-site scripting (XSS) attacks, and unauthenticated users to perform reflected cross-site scripting attacks. Affected releases are TIBCO Software Inc.'s TIBCO EBX: versions up to and including 5.8.1.fixR, versions 5.9.3, 5.9.4, 5.9.5, and 5.9.6.

Frequently asked questions

What is CVE-2019-17330?: The Web server component of TIBCO Software Inc.'s TIBCO EBX contains multiple vulnerabilities that theoretically allow authenticated users to perform stored cross-site scripting (XSS) attacks, and unauthenticated users to perform reflected cross-site scripting attacks. Affected releases are TIBCO Software Inc.'s TIBCO EBX: versions up to and including 5.8.1.fixR, versions 5.9.3, 5.9.4, 5.9.5, and 5.9.6.
How severe is CVE-2019-17330?: CVE-2019-17330 has a CVSS 3.x base score of 9.6, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-17330 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-17330?: CVE-2019-17330 primarily affects Tibco Ebx. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-17330?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2019-17330 published?: CVE-2019-17330 was published on 2019-11-12 and last updated on 2026-06-17.

References

Affected products (6)

cpe:2.3:a:tibco:ebx:*:*:*:*:*:*:*:*
cpe:2.3:a:tibco:ebx:5.8.1:fixr:*:*:*:*:*:*
cpe:2.3:a:tibco:ebx:5.9.3:*:*:*:*:*:*:*
cpe:2.3:a:tibco:ebx:5.9.4:*:*:*:*:*:*:*
cpe:2.3:a:tibco:ebx:5.9.5:*:*:*:*:*:*:*
cpe:2.3:a:tibco:ebx:5.9.6:*:*:*:*:*:*:*

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