Security readout for executives and security teams
Plain-English summary
This is a cross-site scripting issue in WAGO device web pages. An attacker does not need to log in, but a user must interact with malicious content. Successful abuse could expose limited information or let the attacker influence actions in the user's browser session. The source bundle does not show availability impact.
Executive priority
Treat this as a moderate OT web-interface risk. It is not described as actively exploited, but exposed management interfaces or shared admin workstations can raise business urgency. Prioritize confirmation of affected assets and vendor-recommended remediation.
Technical view
CVE-2018-25090 is CWE-79 improper input neutralization during web page generation affecting multiple WAGO controller and fieldbus coupler product lines. CVSS 3.1 is 5.4, network-reachable, low complexity, no privileges required, user interaction required, with low confidentiality and integrity impact and no availability impact.
Likely exposure
Exposure is most relevant where listed WAGO controllers or Ethernet fieldbus couplers have reachable web management interfaces. The provided affected data is incomplete or ambiguous, so teams should validate exact models and firmware against the VDE/WAGO advisory.
Exploitation context
The source bundle does not report known active exploitation, and CISA KEV status is false. Exploitation requires user interaction, consistent with an XSS scenario, so risk rises when operators or administrators browse device interfaces from systems that also access untrusted content.
Researcher notes
Evidence supports unauthenticated remote XSS with required user interaction and limited confidentiality/integrity impact. The bundle lists affected product families but does not provide clear firmware ranges or a named fix. Avoid assuming exploit maturity or product scope beyond the cited records.
Mitigation direction
- Check the VDE/WAGO advisory for affected firmware, updates, and workarounds.
- Restrict device web interfaces to trusted management networks or VPN access.
- Limit administrator browsing from systems used to manage OT devices.
- Monitor vendor guidance if exact fixed versions are not identified internally.
- Prioritize remediation for internet-exposed or broadly reachable management interfaces.
Validation and detection
- Inventory WAGO devices matching the listed product families.
- Compare model and firmware details against the VDE/WAGO advisory.
- Confirm web management interfaces are not exposed to untrusted networks.
- Review access controls around operator and administrator workstations.
- Track whether vendor-fixed firmware or mitigations are applied.
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-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2018-25090 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
- Medium
- CVSS
- 5.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/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:L/PR:N/UI:R/S:U/C:L/I:L/A:N2.82.5Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.4MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://cert.vde.com/en/advisories/VDE-2023-039/CVE reference
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 Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.