CVE-2021-43047

Name: CVE-2021-43047
Creator: NVD / NIST
Published: 2021-11-16T18:15:07.85+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9/10EPSS 0.96%

Last modified Jun 17, 2026

CVE-2021-43047 is a critical-severity vulnerability rated 9/10 on the CVSS scale. The Interior Server and Gateway Server components of TIBCO Software Inc.'s TIBCO PartnerExpress contain easily exploitable Stored and Reflected Cross Site Scripting (XSS) vulnerabilities that allow a low privileged attacker to social engineer a legitimate user with network access to execute scripts targeting the affected system or the victim's local system. A successful attack using this vulnerability requires human interaction from a person other than the attacker. EPSS estimates a 0.96% chance of exploitation in the next 30 days.

Description

The Interior Server and Gateway Server components of TIBCO Software Inc.'s TIBCO PartnerExpress contain easily exploitable Stored and Reflected Cross Site Scripting (XSS) vulnerabilities that allow a low privileged attacker to social engineer a legitimate user with network access to execute scripts targeting the affected system or the victim's local system. A successful attack using this vulnerability requires human interaction from a person other than the attacker. Affected releases are TIBCO Software Inc.'s TIBCO PartnerExpress: versions 6.2.1 and below.

Metrics

CVSS 3.1

9/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

EPSS Probability

0.96%

57.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Tibco	Partnerexpress	<= 6.2.1

References

https://www.tibco.com/services/support/advisoriesVendor Advisory
https://www.tibco.com/support/advisories/2021/11/tibco-security-advisory-november-16-2021-tibco-partnerexpress-2021-43047Vendor Advisory
https://www.tibco.com/services/support/advisoriesVendor Advisory
https://www.tibco.com/support/advisories/2021/11/tibco-security-advisory-november-16-2021-tibco-partnerexpress-2021-43047Vendor Advisory

Timeline

Published: Nov 16, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-43047?

How severe is CVE-2021-43047?

CVE-2021-43047 has a CVSS score of 9/10 (CRITICAL severity). The EPSS model estimates a 0.96% probability of exploitation in the next 30 days.

How do I fix CVE-2021-43047?

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-2021-43047?

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

Scan your code now

Source: NVD / NIST