{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-35063", "assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "state": "PUBLISHED", "assignerShortName": "icscert", "dateReserved": "2026-04-06T15:01:14.379Z", "datePublished": "2026-04-09T19:00:09.980Z", "dateUpdated": "2026-04-09T19:00:09.980Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "shortName": "icscert", "dateUpdated": "2026-04-09T19:00:09.980Z"}, "title": "Missing Authorization in OpenPLC_V3", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-862", "description": "CWE-862: Missing Authorization", "type": "CWE"}]}], "affected": [{"vendor": "OpenPLC_V3", "product": "OpenPLC_V3", "versions": [{"status": "affected", "version": "All versions"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "OpenPLC_V3 REST API endpoint checks for JWT presence but never verifies the caller's role. Any authenticated user with role=user can delete any other user, including administrators, by specifying their user ID or they can create new accounts with role=admin, escalating to full administrator access.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>OpenPLC_V3 REST API endpoint checks for JWT presence but never verifies the caller's role. Any authenticated user with role=user can delete any other user, including administrators, by specifying their user ID or they can create new accounts with role=admin, escalating to full administrator access.</p><p><br></p>"}]}], "references": [{"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-25-345-10", "tags": ["government-resource"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "HIGH", "baseScore": 8.7, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}}], "workarounds": [{"lang": "en", "value": "OpenPLC_v3 is now considered to be end of life. Users are recommended to upgrade to OpenPLC Runtime v4 ( https://github.com/autonomy-logic/openplc-runtime ).", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>OpenPLC_v3 is now considered to be end of life. Users are recommended to upgrade to OpenPLC Runtime v4 (<a href=\"https://github.com/autonomy-logic/openplc-runtime\" target=\"_blank\">https://github.com/autonomy-logic/openplc-runtime</a>).</p><br>"}]}], "credits": [{"lang": "en", "value": "Arad Inbar, Nir Somech, Ben Grinberg, Daniel Lubel, Erez Cohen, and Adiel Sol from DREAM", "type": "finder"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.1"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "OpenPLC_V3 REST API endpoint checks for JWT presence but never verifies the caller's role. Any authenticated user with role=user can delete any other user, including administrators, by specifying their user ID or they can create new accounts with role=admin, escalating to full administrator access."}], "id": "CVE-2026-35063", "lastModified": "2026-04-09T20:16:25.833", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.7, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "ics-cert@hq.dhs.gov", "type": "Secondary"}]}, "published": "2026-04-09T20:16:25.833", "references": [{"source": "ics-cert@hq.dhs.gov", "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-25-345-10"}], "sourceIdentifier": "ics-cert@hq.dhs.gov", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-862"}], "source": "ics-cert@hq.dhs.gov", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "OpenPLC_V3", "source": "cna", "vendor": "OpenPLC_V3"}, "product": "openplc_v3", "vendor": "openplcproject"}], "analysis": {"en": {"generated_at": "2026-04-09T20:53:51.039590+00:00", "value": {"mitigation_remediation": ["Upgrade to OpenPLC Runtime v4, as recommended by the vendor.", "If migration to v4 is not possible, restrict or disable the REST API user management endpoints until a proper patch is applied."], "summary": {"action": "Upgrade", "impact": "Privilege Escalation"}, "threat_synthesis": {"affected_systems": "OpenPLC V3, the standalone open\u2011source PLC simulator and runtime platform. The product is listed as end of life and only the V3 version is affected.", "description_and_impact": "An authenticated user can delete any other user or create new accounts with administrator privileges in OpenPLC V3 because the REST API only checks for the presence of a JWT token and does not verify the caller\u2019s role, exposing a missing authorization flaw (CWE\u2011862). The result is a local or remote user with normal permissions can gain full administrative control, delete administrators, or create new admin accounts, compromising confidentiality and integrity of the system.", "risk_and_exploitability": "The vulnerability scores an 8.7 on the CVSS scale, indicating a high severity. The EPSS score is not available, and the issue is not recorded in CISA\u2019s KEV catalog, but the required attack conditions are simple: an attacker must authenticate to the REST API. Once authenticated, the flaw can be exploited with minimal effort to elevate privileges, making it a significant risk for any environment that still runs OpenPLC V3 and relies on the default administrator account."}}}}, "created": "2026-04-10T08:39:04.307372+00:00", "updated": "2026-04-10T09:29:49.275257+00:00", "vendors": ["openplcproject", "openplcproject$PRODUCT$openplc_v3"]}