CVE-2020-4298Network attack vector

Credential disclosure via Web UI script injection

Published May 19, 2020 · Updated Sep 17, 2024

Cross-site scripting in IBM InfoSphere Information Server 11.3, 11.5, and 11.7 allows remote authenticated users to disclose credentials. The Web UI renders user-supplied content as arbitrary JavaScript, but IBM has not disclosed the affected endpoint, parameter, or encoding failure. A victim must interact with the injected content in a trusted session, where the script can alter interface behavior and expose credentials.

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 disclose credentials. The Web UI renders user-supplied content as arbitrary JavaScript, but IBM has not disclosed the affected endpoint, parameter, or encoding failure. A victim must interact with the injected content in a trusted session, where the script can alter interface behavior and expose credentials.

The record

CVE
CVE-2020-4298
Published
May 19, 2020
Updated
Sep 17, 2024
Vendor
IBM
Product
InfoSphere Information Server
Classifications
CWE-79, T1056.003
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 19, 2020CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 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

5.4IBM CorporationCVSS:3.0/AV:N/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1056.003Input Capture: Web Portal Capture

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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