CVE-2021-20507

Name: CVE-2021-20507
Creator: NVD / NIST
Published: 2021-07-19T16:15:08.65+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.50%

Last modified Jun 17, 2026

CVE-2021-20507 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. IBM Jazz Foundation and IBM Engineering products are vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session. EPSS estimates a 0.50% chance of exploitation in the next 30 days.

Description

IBM Jazz Foundation and IBM Engineering products are vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session. IBM X-Force ID: 198235.

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

0.50%

38.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Ibm	Engineering Lifecycle Optimization	7.0
Ibm	Engineering Lifecycle Optimization	7.0.1
Ibm	Engineering Lifecycle Optimization	7.0.2
Ibm	Engineering Requirements Quality Assistant On-Premises	All versions
Ibm	Engineering Workflow Management	7.0.0
Ibm	Engineering Workflow Management	7.0.1
Ibm	Engineering Workflow Management	7.0.2
Ibm	Rational Collaborative Lifecycle Management	6.0.6
Ibm	Rational Collaborative Lifecycle Management	6.0.6.1
Ibm	Rational Doors Next Generation	7.0
Ibm	Rational Doors Next Generation	7.0.1
Ibm	Rational Doors Next Generation	7.0.2
Ibm	Rational Engineering Lifecycle Manager	7.0
Ibm	Rational Engineering Lifecycle Manager	7.0.1
Ibm	Rational Engineering Lifecycle Manager	7.0.2
Ibm	Rational Team Concert	6.0.6
Ibm	Rational Team Concert	6.0.6.1

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/198235VDB Entry
https://www.ibm.com/support/pages/node/6473141Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/198235VDB Entry
https://www.ibm.com/support/pages/node/6473141Vendor Advisory

Timeline

Published: Jul 19, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-20507?

How severe is CVE-2021-20507?

CVE-2021-20507 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.50% probability of exploitation in the next 30 days.

How do I fix CVE-2021-20507?

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-2021-20507?

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

Scan your code now

Source: NVD / NIST