CVE-2018-2021

Name: CVE-2018-2021
Creator: NVD / NIST
Published: 2019-07-17T14:15:11.1+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.90%

Last modified Jun 17, 2026

CVE-2018-2021 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. IBM QRadar SIEM 7.2 and 7.3 is 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 0.90% chance of exploitation in the next 30 days.

Description

IBM QRadar SIEM 7.2 and 7.3 is 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: 155345.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

0.90%

55.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Ibm	Qradar Security Information And Event Manager	>= 7.2.0, < 7.2.8
Ibm	Qradar Security Information And Event Manager	>= 7.3.0, <= 7.3.2
Ibm	Qradar Security Information And Event Manager	7.2.8

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/155345VDB Entry, Vendor Advisory
https://www.ibm.com/support/docview.wss?uid=ibm10888117Patch, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/155345VDB Entry, Vendor Advisory
https://www.ibm.com/support/docview.wss?uid=ibm10888117Patch, Vendor Advisory

Timeline

Published: Jul 17, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-2021?

How severe is CVE-2018-2021?

CVE-2018-2021 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.90% probability of exploitation in the next 30 days.

How do I fix CVE-2018-2021?

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-2018-2021?

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

Scan your code now

Source: NVD / NIST