CVE-2025-12635: IBM WebSphere Application Server and WebSphere Application Server Liberty Cross-Site Scripting

Published Dec 8, 2025
·
Updated

IBM WebSphere Application Server 8.5, 9.0 and IBM WebSphere Application Server Liberty 17.0.0.3 through 25.0.0.12 are affected by cross-site scripting due to improper validation of user-supplied input. An attacker could exploit this vulnerability by using a specially crafted URL to redirect the user to a malicious site.

Other sources

IBM WebSphere Application Server and IBM WebSphere Application Server Liberty are affected by cross-site scripting due to improper validation of user-supplied input. An attacker could exploit this vulnerability by using a specially crafted URL to redirect the user to a malicious site.

— IBM

Affected Software

6 affected components
IBM WebSphere Application Server<=9.0
IBM WebSphere Application Server Liberty>=17.0.0.3<=25.0.0.12
IBM WebSphere Application Server>=8.5<8.5.5.29
IBM WebSphere Application Server>=9.0<9.0.5.27
IBM WebSphere Application Server>=17.0.0.3<26.0.0.1
IBM watsonx.data intelligence<=5.2.0, 5.2.1, 5.3.0, 5.3.1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade IBM WebSphere Application Server Liberty to a version that resolves this vulnerability.

    Fixed in 17.0.0.3 - 25.0.0.12Patch PH68817
  2. Upgrade

    Upgrade IBM WebSphere Application Server traditional (v9.0.0.0 - 9.0.5.26) to a version that resolves this vulnerability.

    Fixed in 9.0.5.27 or laterPatch PH68243
  3. Upgrade

    Upgrade IBM WebSphere Application Server traditional (v8.5.0.0 - 8.5.5.28) to a version that resolves this vulnerability.

    Fixed in 8.5.5.29 or laterPatch PH68243

Event History

Dec 8, 2025
CVE Published
via MITRE·09:58 PM
Data Sourced
via MITRE·09:58 PM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·10:15 PM
DescriptionSeverityWeaknessAffected Software
Apr 27, 2026
Data Sourced
via IBM·12:00 AM
DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2025-12635?

CVE-2025-12635 has a moderate severity level due to its potential for exploitation via cross-site scripting.

2

How do I fix CVE-2025-12635?

To fix CVE-2025-12635, ensure that you apply the latest security updates provided by IBM for WebSphere Application Server and its Liberty variant.

3

Which versions of IBM WebSphere are affected by CVE-2025-12635?

CVE-2025-12635 affects IBM WebSphere Application Server versions up to 9.0 and IBM WebSphere Application Server Liberty from 17.0.0.3 to 25.0.0.12.

4

Can CVE-2025-12635 lead to data leakage?

Yes, if exploited, CVE-2025-12635 could potentially lead to data leakage through cross-site scripting attacks.

5

What type of vulnerability is CVE-2025-12635?

CVE-2025-12635 is classified as a cross-site scripting (XSS) vulnerability due to improper validation of user-supplied input.

Company

Resources

Contact

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