CVE-2020-4384Network attack vector

Credential disclosure via Web UI script injection

Published May 6, 2020 · Updated Sep 16, 2024

Cross-site scripting in IBM InfoSphere Information Server 11.3, 11.5, and 11.7 allows remote authenticated users to inject JavaScript via the Web UI. The Web UI renders user-provided content as executable script instead of safely encoding it, allowing code to run in a trusted session. Exploitation requires a logged-in trusted-session user and user interaction with the affected page; reported impact includes credential disclosure and altered Web UI functionality.

CVSS severity5.4
Medium
EPSS probability0.56%
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 InfoSphere Information Server 11.3, 11.5, and 11.7 allows remote authenticated users to inject JavaScript via the Web UI. The Web UI renders user-provided content as executable script instead of safely encoding it, allowing code to run in a trusted session. Exploitation requires a logged-in trusted-session user and user interaction with the affected page; reported impact includes credential disclosure and altered Web UI functionality.

The record

CVE
CVE-2020-4384
Published
May 6, 2020
Updated
Sep 16, 2024
Vendor
IBM
Product
InfoSphere Information Server
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 6, 2020CVE 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=11.3
  2. Affected versionversion=11.5
  3. Affected versionversion=11.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · InfoSphere Information Serverversion=11.3; version=11.5; version=11.7

Published CVSS scores

5.4IBMCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
5.2IBMCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:H/RL:O/RC:C

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
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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