Security readout for executives and security teams
Plain-English summary
This is a low-severity Vaadin flaw where an authenticated user could manipulate some client-side UI property synchronization. The documented impact is limited integrity loss, with high attack complexity and user interaction required. It matters mainly for older Vaadin 10 or 11 applications that trust client-synchronized UI state for decisions.
Executive priority
Treat as routine remediation unless the affected Vaadin UI controls sensitive workflows. The business urgency is low, but unsupported or internet-facing legacy Vaadin applications should be upgraded during the next maintenance cycle.
Technical view
Vaadin flow-server 1.0.0 through 1.0.5, used in Vaadin 10.0.0 through 10.0.7 and 11.0.0 through 11.0.2, lacked a check in the UIDL request handler. A crafted synchronization message could update element property values. CVSS 3.1 is 2.6: network, high complexity, low privileges, user interaction, low integrity impact.
Likely exposure
Exposure is limited to applications using the affected Vaadin or flow-server versions and exposing Vaadin UI sessions to authenticated users. The source bundle does not identify broader products, hosted services, or unauthenticated exposure.
Exploitation context
The CVE is not in KEV, and the supplied sources do not state active exploitation. The CVSS vector indicates exploitation requires low privileges, high complexity, and user interaction, with only limited integrity impact documented.
Researcher notes
The public record describes a missing UIDL request-handler check but provides limited application-level impact detail. Assess exploitability in context by reviewing how the application uses synchronized element properties, without assuming privilege escalation or data disclosure beyond the CVSS impact.
Mitigation direction
- Inventory Vaadin and com.vaadin:flow-server versions in application dependencies.
- Upgrade affected applications to versions outside the documented vulnerable ranges.
- Review Vaadin’s advisory for exact vendor remediation guidance.
- Avoid trusting client-synchronized element properties for authorization or business decisions.
- Prioritize fixes where Vaadin UI state affects transactions or security checks.
Validation and detection
- Check dependency manifests and lockfiles for Vaadin 10.0.0-10.0.7 or 11.0.0-11.0.2.
- Check for com.vaadin:flow-server 1.0.0 through 1.0.5.
- Confirm deployed artifacts match reviewed dependency versions.
- Review application code for server decisions based on client-updated element properties.
- Document whether affected Vaadin UIs require authenticated access.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-754: Exact CWE lookup
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Open ATT&CK lookupCVE-2018-25007 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Low
- CVSS
- 2.6 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N1.21.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
2.6LowVector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://vaadin.com/security/cve-2018-25007CVE reference · x_refsource_MISC
- https://github.com/vaadin/flow/pull/4774CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Check for Unusual or Exceptional Conditions
Improper Check for Unusual or Exceptional Conditions represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.