CVE-2020-4820Network attack vector

Credential disclosure via stored Web UI XSS

Published Jan 27, 2021 · Updated Sep 16, 2024

Cross-site scripting in IBM Cloud Pak for Security 1.4.0.0 allows remote attackers to alter Web UI behavior and disclose credentials via crafted input. The Web UI stores or renders attacker-supplied JavaScript without adequate neutralization, so a trusted-session user who views the affected content executes the script. Exploitation requires access to the CP4S interface and victim interaction, with confidentiality and integrity impact but no reported service interruption.

CVSS severity6.1
Medium
EPSS probability0.72%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in IBM Cloud Pak for Security 1.4.0.0 allows remote attackers to alter Web UI behavior and disclose credentials via crafted input. The Web UI stores or renders attacker-supplied JavaScript without adequate neutralization, so a trusted-session user who views the affected content executes the script. Exploitation requires access to the CP4S interface and victim interaction, with confidentiality and integrity impact but no reported service interruption.

The record

CVE
CVE-2020-4820
Published
Jan 27, 2021
Updated
Sep 16, 2024
Vendor
IBM
Product
IBM Cloud Pak for Security
Classifications
CWE-79, CAPEC-209, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 27, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.4.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · IBM Cloud Pak for Securityversion=1.4.0.0

Published CVSS scores

6.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-209XSS Using MIME Type Mismatch
T1059.007Command and Scripting Interpreter: JavaScript

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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