CVE-2021-35499: The Web Reporting component of TIBCO Software Inc.'s TIBCO Nimbus contains easily exploitable Stored Cross Sit

Q: How do I fix CVE-2021-35499?

nimbus: upgrade to newer than 10.4.0. Exact commands for each OS are on this page.

Q: Is CVE-2021-35499 being exploited?

CVE-2021-35499 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-35499 affect?

CVE-2021-35499 affects nimbus. Severity is high (CVSS 8.0). 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

This month

HIGH 8.0UPGRADE

CVE-2021-35499 is a high-severity flaw (CVSS 8.0) affecting nimbus. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.0 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.6% (top 52%)
CISA exploited list	No
Weakness	CWE-79
Published	2021-10-26
Last modified	2026-06-17

Publisher (CNA): TIBCO Software Inc. · Vendor: tibco

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-10-26 17:15 UTCPublished CVE record published
2026-06-17 03:57 UTCUpdated Record last modified

tibco nimbus UPGRADE

Affected: <= 10.4.0

Fixed in: newer than 10.4.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy nimbus || rpm -q nimbus || nimbus --version

2. UPGRADE to newer than 10.4.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade nimbus

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade nimbus

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-35499?

nimbus: upgrade to newer than 10.4.0. Exact commands for each OS are on this page.

Is CVE-2021-35499 being exploited?

CVE-2021-35499 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-35499 affect?

CVE-2021-35499 affects nimbus. Severity is high (CVSS 8.0). 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

How urgent is CVE-2021-35499?

Priority 40/100. High severity

Related CVEs

CVE-2023-26218 HIGH 8.0 UPGRADE The Web Client component of TIBCO Software Inc.'s TIBCO Nimbus contains easily exploitable Reflected Cross Sit
CVE-2022-41560 MEDIUM 6.5 DOWNGRADE The Statement Set Upload via the Web Client component of TIBCO Software Inc.'s TIBCO Nimbus contains an easily
CVE-2022-41559 CRITICAL 9.3 DOWNGRADE The Web Client component of TIBCO Software Inc.'s TIBCO Nimbus contains an easily exploitable vulnerability th
CVE-2022-24967 MEDIUM 6.5 UPGRADE Black Rainbow NIMBUS before 3.7.0 allows stored Cross-site Scripting (XSS).

References

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