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Low, CVSS 2.6

Unauthorized client-side property update in UIDL request handler in Vaadin 10 and 11

CVE-2018-25007GHSA-jmx8-355m-8vwh

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (com.vaadin:flow-server 1.0.6), redeploy, then verify what is actually installed.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
2.6 · CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N
EPSS
  • CVE-2018-25007: 0.57% estimated exploitation activity in the next 30 days; percentile 47.47 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

Missing check in UIDL request handler in com.vaadin:flow-server versions 1.0.0 through 1.0.5 (Vaadin 10.0.0 through 10.0.7, and 11.0.0 through 11.0.2) allows attacker to update element property values via crafted synchronization message. - https://vaadin.com/security/cve-2018-25007

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 1 · created ·

    Published from ghsa record GHSA-jmx8-355m-8vwh

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2018-25007

Advisory: Unauthorized client-side property update in UIDL request handler in Vaadin 10 and 11
IDs: CVE-2018-25007, GHSA-jmx8-355m-8vwh
Record: https://patchnext.com/advisories/cve-2018-25007 (revision 1, source checked 26 Oct 2026, 16:06 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Low (CVSS 2.6)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: com.vaadin:flow-server 1.0.6. A vendor fix does not mean a deployment is fixed.

## Affected components
- Maven com.vaadin:flow-server: affected >= 1.0.0, <= 1.0.5; fixed in 1.0.6

## Suggested inspection (read-only)
- Maven com.vaadin:flow-server: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on com.vaadin:flow-server.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-jmx8-355m-8vwh (GitHub-reviewed advisory GHSA-jmx8-355m-8vwh lists affected ranges: Maven com.vaadin:flow-server >=1.0.0 <=1.0.5)

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