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Advisory record · GHSA-7wwv-79xw-rvvg

Vaadin vulnerable to Cross-site Scripting

CVSS 4.8 MediumEPSS 0.0033 · 26th percentile

Published by the GitHub Advisory Database at 5 Jan 2026, 09:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
com.vaadin:vaadin-serverMaven>=7.0.0, <7.7.50 || >=8.0.0, <8.30.07.7.50, 8.30.0
com.vaadin:vaadinMaven>=23.1.0, <23.6.6 || >=24.0.0, <24.8.14 || >=24.9.0, <24.9.723.6.6, 24.8.14, 24.9.7
com.vaadin:vaadin-spreadsheet-flowMaven>=23.1.0, <23.6.6 || >=24.0.0, <24.8.14 || >=24.9.0, <24.9.723.6.6, 24.8.14, 24.9.7
Identifiers
GHSA-7wwv-79xw-rvvg · CVE-2025-15022
Weakness (CWE)
CWE-79
Tags
Published
5 Jan 2026
Updated
10 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Vaadin Framework (com.vaadin:vaadin-server) versions 7.0.0 to 7.7.49 and 8.0.0 to 8.29.1, and Vaadin (com.vaadin:vaadin) and vaadin-spreadsheet-flow versions 23.1.0 to 23.6.5, 24.0.0 to 24.8.13, and 24.9.0 to 24.9.6, do not sanitize Action captions, which accept HTML by default. If caption content comes from user input, an attacker may be able to inject script for cross-site scripting. Upgrade vaadin-server to 7.7.50 or 8.30.0, and upgrade vaadin or vaadin-spreadsheet-flow to 23.6.6, 24.8.14, 24.9.7, or 25.0.0 or newer.

Written 2 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
4.8 Medium 4.0 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 CNA (Vaadin)
  • CISA KEV Not listed.
  • EPSS 0.0033, the 26th percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:17 UTC First seen by agentprime
  2. 31 Oct 2026, 14:17 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.