CVE-2019-25028Network attack vector

Stored XSS via unsanitized Grid header captions

Published Apr 23, 2021 · Updated Sep 16, 2024

Stored XSS in Vaadin Framework and Vaadin Server 7.4.0 through 7.7.19 and 8.0.0 through 8.8.4 allows remote attackers to run JavaScript. The Grid header renderer places a column caption into generated markup without sanitizing script-related HTML, so persisted attacker-controlled caption data executes in a viewer's browser. Exposure requires an application to let untrusted users add Grid columns that other users view; the script can read or alter data available to the viewer.

CVSS severity5.4
Medium
EPSS probability0.92%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Stored XSS in Vaadin Framework and Vaadin Server 7.4.0 through 7.7.19 and 8.0.0 through 8.8.4 allows remote attackers to run JavaScript. The Grid header renderer places a column caption into generated markup without sanitizing script-related HTML, so persisted attacker-controlled caption data executes in a viewer's browser. Exposure requires an application to let untrusted users add Grid columns that other users view; the script can read or alter data available to the viewer.

The record

CVE
CVE-2019-25028
Published
Apr 23, 2021
Updated
Sep 16, 2024
Vendor
Vaadin
Product
Vaadin Framework
Classifications
CWE-79, CWE-80
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 23, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=7.4.0 <* changes=[{"at":"8.0.0","status":"affected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Vaadin · Vaadin Frameworkversion=7.4.0 <* changes=[{"at":"8.0.0","status":"affected"}]
Vaadin · Vaadin Serverversion=7.4.0 <* changes=[{"at":"8.0.0","status":"affected"}]

Published CVSS scores

6.1NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.8NIST National Vulnerability DatabaseAV:N/AC:M/Au:N/C:N/I:P/A:N
5.4Vaadin Ltd.CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-80Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo