🎯 CVE-2025-15022 🧪 PoC 🇪🇺 EUVD
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CVE-2025-15022 | 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

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

Klassifikation & Betroffenheit:
Vaadin vaadin-spreadsheet-flow 23.1.0 ≤23.6.5vaadin-spreadsheet-flow 24.0.0 ≤24.8.13Vaadin 23.1.0 ≤23.6.5framework 8.0.0 ≤8.29.1Vaadin 24.0.0 ≤24.8.13vaadin-spreadsheet-flow 24.9.0 ≤24.9.6framework 7.0.0 ≤7.7.49Vaadin 24.9.0 ≤24.9.6
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') 🎯 High

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

🛡️ Empfohlene Mitigation: Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid [REF-1482]. Examples of libraries and frameworks that make it easier to generate properly encoded output include Microsoft's Anti-XSS library, the OWASP ESAPI Encoding module, and …
Vollständige Definition bei MITRE ➔
📚 Referenzen & Quellen:
Ausnutzungs-Zeitleiste:
CVSS-Vektor-Analyse: 4.8
AV · Angriffsvektor Netzwerk
AC · Komplexität Gering
PR · Privilegien Gering
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
Veröffentlicht:05.01.2026
Aktualisiert:05.01.2026 21:11
Assigner (CNA):Vaadin
EUVD-ID:EUVD-2026-0820
CWE-79: Cross-Site Scripting ✓ Offizieller Patch / Advisory verfügbar
💡 Gegenmaßnahme: Sicherheits-Update des Herstellers zeitnah einspielen und Netzwerksegmentierung prüfen.
🔴 Live Security Advisory & EPSS Exploit Radar

Zero-Day & Vulnerability Intelligence Hub

Echtzeit-Tracking mit EPSS Exploit-Wahrscheinlichkeiten, Angriffsvektor-Decodern und KI-Patch-Anleitungen.

367k+ 🇪🇺 EUVD-Datenbank
0 🔴 Critical im Radar
0 ⚠️ CISA KEV
0 🔓 Aktiv ausgenutzt
1 🧪 PoC verfügbar
📊 Historien-Charts — Criticals-Trend · Vendors · EPSS-Verteilung
🔴 Criticals pro Monat (12 M) 2025-09: 81 2025-10: 317 2025-11: 257 2025-12: 426 2026-01: 431 2026-02: 417 2026-03: 649 2026-04: 574 2026-05: 683 2026-06: 941 2026-07: 1327 2026-08: 1828 2026-09: 1022 8.953 Criticals gesamt
🏢 Top-Vendor-Veröffentlichungen (6 M) Adobe Apple Google Linux Microsoft Oracle Corporation
● Adobe ● Apple ● Google ● Linux ● Microsoft ● Oracle
📈 EPSS-Verteilung (Messungen)
Tier2026-09-022026-09-20
≥90 %0489
≥50 %01477
≥10 %00
<10 %3000
Datenquellen & Methodik: Primärquelle ist die EUVD der ENISA (laufender Datenbank-Sync, alle 15 Minuten), abgeglichen mit dem CISA-KEV-Katalog und der NVD — Detail-Dossiers reichern fehlende Felder live per NVD an — mit Fallback auf CIRCL vulnerability-lookup (EU/Non-Profit, aggregiert CVE-, GitHub- und OSV-Advisories). Der CISA-KEV-Katalog (Known Exploited Vulnerabilities, ~1.700 aktiv ausgenutzte Schwachstellen) wird bei jedem Sync vollständig neu geladen und kreuzreferenziert — filterbar über die KEV-Pille. CVSS 3.1 wird nach Ampel-Logik aus Verteidigersicht dekodiert; EPSS bezeichnet die 30-Tage-Exploit-Wahrscheinlichkeit (FIRST.org).
🇪🇺 ENISA EUVD 🇺🇸 NVD ⚠️ CISA KEV ⚡ EPSS
Ökosystem & Hersteller Bedrohungs-Matrix:
Schweregrad & Status:
Hersteller (Datenbank-weit, 96.577 Einträge):
Quelle:
Schwachstellen-Kategorie (CWE):
🔍
EPSS 0.3%
CVE-2025-15022 🌐 Netzwerk (Remote) 🔑 Geringe Nutzerrechte nötig
Vaadin

CVE-2025-15022 | 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

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 clas

CWE-79: Cross-Site Scripting ✓ Offizieller Patch / Advisory verfügbar
💡 Gegenmaßnahme: Sicherheits-Update des Herstellers zeitnah einspielen und Netzwerksegmentierung prüfen.