CVE-2021-20560

Name: CVE-2021-20560
Creator: NVD / NIST
Published: 2021-07-26T12:15:08.503+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.64%

Last modified Jun 17, 2026

CVE-2021-20560 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. IBM Sterling Connect:Direct Browser User Interface 1.4.1.1 and 1.5.0.2 could allow a remote attacker to hijack the clicking action of the victim. By persuading a victim to visit a malicious Web site, a remote attacker could exploit this vulnerability to hijack the victim's click actions and possibly launch further attacks against the victim. EPSS estimates a 0.64% chance of exploitation in the next 30 days.

Description

IBM Sterling Connect:Direct Browser User Interface 1.4.1.1 and 1.5.0.2 could allow a remote attacker to hijack the clicking action of the victim. By persuading a victim to visit a malicious Web site, a remote attacker could exploit this vulnerability to hijack the victim's click actions and possibly launch further attacks against the victim. IBM X-Force ID: 199229.

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

0.64%

46.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-1021

Affected Software

Vendor	Product	Versions
Ibm	Sterling Connect Direct User Interface	1.4.1.1
Ibm	Sterling Connect Direct User Interface	1.5.0.2

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/199229VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6474829Patch, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/199229VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6474829Patch, Vendor Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2021-20560?

How severe is CVE-2021-20560?

CVE-2021-20560 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.64% probability of exploitation in the next 30 days.

How do I fix CVE-2021-20560?

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-2021-20560?

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

Scan your code now

Source: NVD / NIST