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ID

VAR-202511-0448


CVE

CVE-2025-34237


TITLE

Advantech WebAccess/VPN StandaloneVpnClientsController.addStandaloneVpnClientAction function cross-site scripting vulnerability.

Trust: 0.6

sources: CNVD: CNVD-2025-31070

DESCRIPTION

Advantech WebAccess/VPN versions prior to 1.1.5 contain a stored cross-site scripting (XSS) vulnerability via StandaloneVpnClientsController.addStandaloneVpnClientAction(). Insufficient validation or escaping of user-supplied input may allow an attacker to inject and execute arbitrary script in the context of a victim's browser. Advantech WebAccess/VPN is a virtual private network function integrated into Advantech's WebAccess/SCADA software, designed to provide secure and reliable network connectivity solutions for industrial automation and remote monitoring systems. This vulnerability stems from insufficient validation of user input in the StandaloneVpnClientsController.addStandaloneVpnClientAction function

Trust: 1.44

sources: NVD: CVE-2025-34237 // CNVD: CNVD-2025-31070

IOT TAXONOMY

category:['ICS']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2025-31070

AFFECTED PRODUCTS

vendor:advantechmodel:webaccess\/vpnscope:ltversion:1.1.5

Trust: 1.0

vendor:advantechmodel:webaccess/vpnscope:ltversion:1.1.5

Trust: 0.6

sources: CNVD: CNVD-2025-31070 // NVD: CVE-2025-34237

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2025-34237
value: MEDIUM

Trust: 1.0

disclosure@vulncheck.com: CVE-2025-34237
value: MEDIUM

Trust: 1.0

CNVD: CNVD-2025-31070
value: MEDIUM

Trust: 0.6

CNVD: CNVD-2025-31070
severity: MEDIUM
baseScore: 5.5
vectorString: AV:N/AC:L/AU:S/C:P/I:P/A:N
accessVector: NETWORK
accessComplexity: LOW
authentication: SINGLE
confidentialityImpact: PARTIAL
integrityImpact: PARTIAL
availabilityImpact: NONE
exploitabilityScore: 8.0
impactScore: 4.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

nvd@nist.gov: CVE-2025-34237
baseSeverity: MEDIUM
baseScore: 5.4
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: REQUIRED
scope: CHANGED
confidentialityImpact: LOW
integrityImpact: LOW
availabilityImpact: NONE
exploitabilityScore: 2.3
impactScore: 2.7
version: 3.1

Trust: 1.0

sources: CNVD: CNVD-2025-31070 // NVD: CVE-2025-34237 // NVD: CVE-2025-34237

PROBLEMTYPE DATA

problemtype:CWE-79

Trust: 1.0

sources: NVD: CVE-2025-34237

PATCH

title:Patch for Advantech WebAccess/VPN StandaloneVpnClientsController.addStandaloneVpnClientAction function cross-site scripting vulnerability.url:https://www.cnvd.org.cn/patchInfo/show/783156

Trust: 0.6

sources: CNVD: CNVD-2025-31070

EXTERNAL IDS

db:NVDid:CVE-2025-34237

Trust: 1.6

db:CNVDid:CNVD-2025-31070

Trust: 0.6

sources: CNVD: CNVD-2025-31070 // NVD: CVE-2025-34237

REFERENCES

url:https://www.vulncheck.com/advisories/advantech-webaccess-vpn-stored-xss-via-standalonevpnclientscontroller

Trust: 1.0

url:https://icr.advantech.com/download/software

Trust: 1.0

url:https://icr.advantech.com/support/router-models/download/511/sa-2025-01-vpn-portal-2025-11-06.pdf

Trust: 1.0

url:https://nvd.nist.gov/vuln/detail/cve-2025-34237

Trust: 0.6

sources: CNVD: CNVD-2025-31070 // NVD: CVE-2025-34237

SOURCES

db:CNVDid:CNVD-2025-31070
db:NVDid:CVE-2025-34237

LAST UPDATE DATE

2025-12-20T19:39:02.919000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2025-31070date:2025-12-19T00:00:00
db:NVDid:CVE-2025-34237date:2025-11-28T16:44:34.803

SOURCES RELEASE DATE

db:CNVDid:CNVD-2025-31070date:2025-12-18T00:00:00
db:NVDid:CVE-2025-34237date:2025-11-06T20:15:47.363