CVE-2023-33843Network attack vector

Credential disclosure via Web UI script injection

Published Feb 21, 2024 · Updated Aug 2, 2024

Cross-site scripting in IBM InfoSphere Information Server 11.7 allows attackers to disclose credentials through the Web UI. The Web UI places attacker-controlled JavaScript into page output without sufficient neutralization, but IBM does not identify the affected page or input. A victim must interact with the injected content, and IBM's published assessments conflict on whether the attacker must authenticate.

CVSS severity5.4
Medium
EPSS probability0.36%
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 11.7 allows attackers to disclose credentials through the Web UI. The Web UI places attacker-controlled JavaScript into page output without sufficient neutralization, but IBM does not identify the affected page or input. A victim must interact with the injected content, and IBM's published assessments conflict on whether the attacker must authenticate.

The record

CVE
CVE-2023-33843
Published
Feb 21, 2024
Updated
Aug 2, 2024
Vendor
IBM
Product
InfoSphere Information Server
Classifications
CWE-79, T1203
Attack vector
network
Privileges
Unavailable

Timeline

How it unfolded

  1. Feb 21, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=11.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesUnavailable in this record.

What is affected?

IBM · InfoSphere Information Serverversion=11.7

Published CVSS scores

5.4IBM Corporation CNACVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
5.4IBM Security BulletinCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

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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