CVE-2025-15022

Cross-site scripting in Action caption

State: Published
Severity: 4.8 Medium
Published: Jan 5, 2026
Updated: Jan 5, 2026
Reserved: Dec 22, 2025

Description

Action captions in Vaadin accept HTML by default but were not sanitized, potentially allowing Cross-site Scripting (XSS) if caption content is derived from user input.

In Vaadin Framework 7 and 8, the Action class is a general-purpose class that may be used by multiple components. The fixed versions sanitize captions by default and provide an API to explicitly enable HTML content mode for backwards compatibility.

In Vaadin 23 and newer, the Action class is only used by the Spreadsheet component. The fixed versions sanitize HTML using Jsoup with a relaxed safelist.

Vaadin 14 is not affected as Spreadsheet component was not supported.

Users of affected versions should apply the following mitigation or upgrade. Releases that have fixed this issue include:

Product version Vaadin 7.0.0 - 7.7.49 Vaadin 8.0.0 - 8.29.1 Vaadin 23.1.0 - 23.6.5 Vaadin 24.0.0 - 24.8.13 Vaadin 24.9.0 - 24.9.6

Mitigation Upgrade to 7.7.50 Upgrade to 8.30.0 Upgrade to 23.6.6 Upgrade to 24.8.14 or 24.9.7 Upgrade to 25.0.0 or newer

Artifacts Maven coordinatesVulnerable versionsFixed versioncom.vaadin:vaadin-server 7.0.0 - 7.7.49 ≥7.7.50 com.vaadin:vaadin-server 8.0.0 - 8.29.1 ≥8.30.0 com.vaadin:vaadin 23.1.0 - 23.6.5 ≥23.6.6 com.vaadin:vaadin24.0.0 - 24.8.13 ≥24.8.14 com.vaadin:vaadin24.9.0 - 24.9.6 ≥24.9.7 com.vaadin:vaadin-spreadsheet-flow 23.1.0 - 23.6.5 ≥23.6.6 com.vaadin:vaadin-spreadsheet-flow 24.0.0 - 24.8.13 ≥24.8.14 com.vaadin:vaadin-spreadsheet-flow 24.9.0 - 24.9.6 ≥24.9.7

Scores

CVSS	Score	Vector	Source
4.0	4.8 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/S:N/AU:N/R:U/V:D/RE:L/U:Amber	Vaadin

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation (Cross-site Scripting)

Affected Products

Product	Versions
vaadinvaadin	23.1.0 through 23.6.5Affected 24.0.0 through 24.8.13Affected 24.9.0 through 24.9.6Affected
frameworkvaadin	7.0.0 through 7.7.49Affected 8.0.0 through 8.29.1Affected
vaadin-spreadsheet-flowvaadin	23.1.0 through 23.6.5Affected 24.0.0 through 24.8.13Affected 24.9.0 through 24.9.6Affected

References

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