CVE-2021-20562

Name: CVE-2021-20562
Creator: NVD / NIST
Published: 2021-07-27T12:15:07.617+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.95%

Last modified Jun 17, 2026

CVE-2021-20562 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. IBM Sterling B2B Integrator Standard Edition 5.2.0.0 through 5.2.6.5_3 and 6.1.0.0 through 6.1.0.2 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 0.95% chance of exploitation in the next 30 days.

Description

IBM Sterling B2B Integrator Standard Edition 5.2.0.0 through 5.2.6.5_3 and 6.1.0.0 through 6.1.0.2 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: 199232.

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

0.95%

56.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Ibm	Sterling B2b Integrator	>= 5.2.0.0, <= 5.2.6.5_3
Ibm	Sterling B2b Integrator	>= 6.1.0.0, <= 6.1.0.2

References

http://packetstormsecurity.com/files/164782/IBM-Sterling-B2B-Integrator-Cross-Site-Scripting.htmlExploit, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2021/Nov/16Exploit, Mailing List, Third Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/199232VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6475301Patch, Vendor Advisory
http://packetstormsecurity.com/files/164782/IBM-Sterling-B2B-Integrator-Cross-Site-Scripting.htmlExploit, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2021/Nov/16Exploit, Mailing List, Third Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/199232VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6475301Patch, Vendor Advisory

Timeline

Published: Jul 27, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-20562?

How severe is CVE-2021-20562?

CVE-2021-20562 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.95% probability of exploitation in the next 30 days.

How do I fix CVE-2021-20562?

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-2021-20562?

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

Scan your code now

Source: NVD / NIST