CVE-2021-34540

View on CVE.org

Published Jun 11, 2021 CVSS 3.1 · 6.1 Medium EPSS < 1% KEV · Not listed

Description

Advantech WebAccess 8.4.2 and 8.4.4 allows XSS via the username column of the bwRoot.asp page of WADashboard.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

OR	cpe:2.3:a:advantech:webaccess:8.4.2:::::::*
	cpe:2.3:a:advantech:webaccess:8.4.4:::::::*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2021-21192	Advantech WebAccess 8.4.2 and 8.4.4 allows XSS via the username column of the bwRoot.asp page of WADashboard.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

Access Vector Network

Access Complexity Medium

Authentication None

Confidentiality Impact None

Integrity Impact Partial

Availability Impact None

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.867% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/ethancsyang/CveProject/tree/main/CVE-2021-34540
https://www.advantech.com/support

History

No history.

Subscriptions

Advantech Webaccess

Weaknesses

CWE-79

Sources

CVE record Updated: Aug 4, 2024, 12:12 AM

Status: PUBLISHED
Assigner: mitre
Published: Jun 11, 2021, 11:26 AM
Updated: Aug 4, 2024, 12:12 AM
Reserved: Jun 10, 2021, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 3:56 AM

Status: Modified
Published: Jun 11, 2021, 12:15 PM
Modified: Jun 17, 2026, 3:56 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "descriptions": [{"lang": "en", "value": "Advantech WebAccess 8.4.2 and 8.4.4 allows XSS via the username column of the bwRoot.asp page of WADashboard."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-06-11T11:26:02.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://www.advantech.com/support"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/ethancsyang/CveProject/tree/main/CVE-2021-34540"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2021-34540", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Advantech WebAccess 8.4.2 and 8.4.4 allows XSS via the username column of the bwRoot.asp page of WADashboard."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "https://www.advantech.com/support", "refsource": "MISC", "url": "https://www.advantech.com/support"}, {"name": "https://github.com/ethancsyang/CveProject/tree/main/CVE-2021-34540", "refsource": "MISC", "url": "https://github.com/ethancsyang/CveProject/tree/main/CVE-2021-34540"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T00:12:50.380Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.advantech.com/support"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/ethancsyang/CveProject/tree/main/CVE-2021-34540"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2021-34540", "datePublished": "2021-06-11T11:26:02.000Z", "dateReserved": "2021-06-10T00:00:00.000Z", "dateUpdated": "2024-08-04T00:12:50.380Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:advantech:webaccess:8.4.2:*:*:*:*:*:*:*", "matchCriteriaId": "E57AC812-39BF-4077-9231-69839C4BAC1D", "vulnerable": true}, {"criteria": "cpe:2.3:a:advantech:webaccess:8.4.4:*:*:*:*:*:*:*", "matchCriteriaId": "1C609ED1-274A-461E-94C8-6BB1B173AE9A", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Advantech WebAccess 8.4.2 and 8.4.4 allows XSS via the username column of the bwRoot.asp page of WADashboard."}, {"lang": "es", "value": "Advantech WebAccess versiones 8.4.2 y 8.4.4, permite ataques de tipo XSS por medio de la columna de nombre de usuario de la p\u00e1gina bwRoot.asp de WADashboard"}], "id": "CVE-2021-34540", "lastModified": "2026-06-17T03:56:05.647", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 4.3, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-06-11T12:15:12.130", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/ethancsyang/CveProject/tree/main/CVE-2021-34540"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "https://www.advantech.com/support"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/ethancsyang/CveProject/tree/main/CVE-2021-34540"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.advantech.com/support"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "nvd@nist.gov", "type": "Primary"}]}