CVE-2026-12751Network attack vector

Victim-session script execution via unneutralized HTML

Published Sep 15, 2026 · Updated Sep 15, 2026

HTML injection in IBM Cloud Pak for Business Automation allows remote authenticated users to run HTML in a victim's browser. The Business Automation Workflow component passes attacker-supplied HTML into a page without neutralizing script-related tags; IBM has not disclosed the affected field or rendering path. Exploitation requires authenticated access and a separate victim to view the injected content, permitting script execution in the hosting site's security context.

CVSS severity5.4
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

HTML injection in IBM Cloud Pak for Business Automation allows remote authenticated users to run HTML in a victim's browser. The Business Automation Workflow component passes attacker-supplied HTML into a page without neutralizing script-related tags; IBM has not disclosed the affected field or rendering path. Exploitation requires authenticated access and a separate victim to view the injected content, permitting script execution in the hosting site's security context.

The record

CVE
CVE-2026-12751
Published
Sep 15, 2026
Updated
Sep 15, 2026
Vendor
IBM
Product
Cloud Pak for Business Automation
Classifications
CWE-80, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 15, 2026Record 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=24.0.0 <=24.0.0 Interim Fix 009
  2. Affected versionversion=24.0.1 <=24.0.1 Interim Fix 008
  3. Affected versionversion=25.0.0 <=25.0.0 Interim Fix 005
  4. Affected versionversion=26.0.0 <=26.0.0 Interim Fix 001

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · Cloud Pak for Business Automationversion=24.0.0 <=24.0.0 Interim Fix 009; version=24.0.1 <=24.0.1 Interim Fix 008; version=25.0.0 <=25.0.0 Interim Fix 005; version=26.0.0 <=26.0.0 Interim Fix 001

Published CVSS scores

5.4IBMCVSS:3.1/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-80Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
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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