Cross-site Scripting Vulnerability in Vaadin Framework by Vaadin
CVE-2025-15022

4.8MEDIUM

Key Information:

Vendor

Vaadin

Status
Vaadin
Framework
Vaadin-spreadsheet-flow
Vendor
CVE Published:
5 January 2026

What is CVE-2025-15022?

The Vaadin Framework contains a vulnerability where action captions are allowed to accept HTML without sanitization, potentially leading to Cross-site Scripting (XSS) if the caption content is influenced by user input. This issue is present in several versions, specifically Vaadin 7 and 8, and has been mitigated in the newer releases that include automatic HTML sanitization using Jsoup with a relaxed safelist. Affected users are strongly encouraged to upgrade to the fixed versions or apply appropriate mitigations to enhance security.

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Deploy the Patch

Affected Version(s)

framework 7.0.0 <= 7.7.49

framework 8.0.0 <= 8.29.1

vaadin 23.1.0 <= 23.6.5

References

https://vaadin.com/security/cve-2025-15022
https://github.com/vaadin/flow-components/pull/8285

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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