# CVE-2025-36321: IBM watsonx.data intelligence HTML injection

Source: https://junglewise.ai/threats/cve-2025-36321-ibm-watsonx-data-intelligence-html-injection  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-30. Updated: 2026-06-30  
License: CC BY 4.0 with a link back

CVE-2025-36321 · Severity: medium · CVSS 5.7 · Published 2026-06-30

IBM watsonx.data intelligence is a platform used for managing and analyzing large-scale data workloads. A security vulnerability in certain versions allows a remote attacker to inject malicious HTML code into the application. If a user views the affected content, the malicious code could execute in their browser, potentially allowing the attacker to access sensitive information within the user's session.

Technologies: [IBM Watsonx.Data Intelligence](https://junglewise.ai/threats/technologies/watsonx-data-intelligence). Vendors: [IBM](https://junglewise.ai/threats/vendors/ibm).

## Quick answers

**Is CVE-2025-36321 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-36321 being exploited in the wild.

**How severe is CVE-2025-36321?** Medium severity, with a CVSS score of 5.7, published 30 June 2026.

**Which products and versions are affected?** IBM Watsonx.Data Intelligence 5.2.0, 5.2.1, 5.2.2, 5.3.0.

**Is there a fix for CVE-2025-36321?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2025-36321 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2025-36321?** Check whether you run IBM Watsonx.Data Intelligence at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

IBM watsonx.data intelligence versions 5.2.0 through 5.3.0 are vulnerable to HTML injection (CWE-80). The vulnerability stems from improper neutralization of script-related HTML tags in web pages. A remote attacker with low privileges can inject malicious HTML code that, when viewed by a victim, executes within the security context of the hosting site. This can lead to the disclosure of sensitive information. The issue is addressed in Watson Data Intelligence version 5.3.1.

## Affected products

- IBM watsonx.data intelligence 5.2.0, 5.2.1, 5.2.2, 5.3.0

## Timeline

- 2026-06-30: disclosed: Initial advisory publication date
- 2026-06-30: advisory: NVD record published

## References

- [https://www.ibm.com/support/pages/node/7277801](https://www.ibm.com/support/pages/node/7277801)

## Related threats

- [IBM watsonx.data intelligence cleartext transmission of sensitive information](https://junglewise.ai/threats/cve-2025-36336-ibm-watsonx-data-intelligence-cleartext-transmission-of-sensitive)
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- [IBM watsonx.data intelligence information disclosure via error messages](https://junglewise.ai/threats/cve-2025-36328-ibm-watsonx-data-intelligence-information-disclosure-via-error)
- [IBM watsonx.data intelligence security bypass via client-side enforcement](https://junglewise.ai/threats/cve-2025-36327-ibm-watsonx-data-intelligence-security-bypass-via-client-side)
- [IBM watsonx.data intelligence SSRF](https://junglewise.ai/threats/cve-2025-36324-ibm-watsonx-data-intelligence-ssrf)