CVE-2021-35499

Name: CVE-2021-35499
Creator: NVD / NIST
Published: 2021-10-26T17:15:07.987+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.58%

Last modified Jun 17, 2026

CVE-2021-35499 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. The Web Reporting component of TIBCO Software Inc.'s TIBCO Nimbus contains easily exploitable Stored 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 0.58% chance of exploitation in the next 30 days.

Description

The Web Reporting component of TIBCO Software Inc.'s TIBCO Nimbus contains easily exploitable Stored 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 Nimbus: versions 10.4.0 and below.

Metrics

CVSS 3.1

5.4/10

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

EPSS Probability

0.58%

43.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Tibco	Nimbus	<= 10.4.0

References

https://www.tibco.com/services/support/advisoriesVendor Advisory
https://www.tibco.com/support/advisories/2021/10/tibco-security-advisory-october-26-2021-tibco-nimbus-2021-35499Vendor Advisory
https://www.tibco.com/services/support/advisoriesVendor Advisory
https://www.tibco.com/support/advisories/2021/10/tibco-security-advisory-october-26-2021-tibco-nimbus-2021-35499Vendor Advisory

Timeline

Published: Oct 26, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-35499?

How severe is CVE-2021-35499?

CVE-2021-35499 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.58% probability of exploitation in the next 30 days.

How do I fix CVE-2021-35499?

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-2021-35499?

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

Scan your code now

Source: NVD / NIST