{"id":"CVE-2026-20781","state":"PUBLISHED","title":"CloudCharge cloudcharge.se Missing Authentication for Critical Function","description":"WebSocket endpoints lack proper authentication mechanisms, enabling \nattackers to perform unauthorized station impersonation and manipulate \ndata sent to the backend. An unauthenticated attacker can connect to the\n OCPP WebSocket endpoint using a known or discovered charging station \nidentifier, then issue or receive OCPP commands as a legitimate charger.\n Given that no authentication is required, this can lead to privilege \nescalation, unauthorized control of charging infrastructure, and \ncorruption of charging network data reported to the backend.","publishedAt":"2026-02-26T23:24:00.964Z","updatedAt":"2026-03-05T19:40:05.284Z","severity":{"score":9.3,"label":"Critical","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N","source":"icscert"},"assigner":"icscert","products":["CloudCharge cloudcharge.se"],"affected":[{"vendor":"CloudCharge","product":"cloudcharge.se","defaultStatus":"unaffected","versions":[{"version":"All versions","status":"affected"}]}],"references":["https://cloudcharge.tech/support/contact/","https://www.cisa.gov/news-events/ics-advisories/icsa-26-057-03","https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-057-03.json"],"weaknesses":["CWE-306"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/20xxx/CVE-2026-20781.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-20781","state":"PUBLISHED","datePublished":"2026-02-26T23:24:00.964Z","dateUpdated":"2026-03-05T19:40:05.284Z","assignerShortName":"icscert","assignerOrgId":"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6","dateReserved":"2026-02-24T00:00:40.119Z"},"containers":{"cna":{"title":"CloudCharge cloudcharge.se Missing Authentication for Critical Function","descriptions":[{"lang":"en","value":"WebSocket endpoints lack proper authentication mechanisms, enabling \nattackers to perform unauthorized station impersonation and manipulate \ndata sent to the backend. An unauthenticated attacker can connect to the\n OCPP WebSocket endpoint using a known or discovered charging station \nidentifier, then issue or receive OCPP commands as a legitimate charger.\n Given that no authentication is required, this can lead to privilege \nescalation, unauthorized control of charging infrastructure, and \ncorruption of charging network data reported to the backend."}],"affected":[{"vendor":"CloudCharge","product":"cloudcharge.se","defaultStatus":"unaffected","versions":[{"version":"All versions","status":"affected"}]}],"references":[{"url":"https://cloudcharge.tech/support/contact/"},{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-26-057-03"},{"url":"https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-057-03.json"}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":9.4,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]},{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":9.3,"baseSeverity":"CRITICAL","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","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:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-306","description":"CWE-306 Missing Authentication for Critical Function","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"icscert","orgId":"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6","dateUpdated":"2026-03-05T19:40:05.284Z"},"credits":[{"lang":"en","type":"finder","value":"Khaled Sarieddine and Mohammad Ali Sayed reported this vulnerability to CISA."}],"source":{"advisory":"ICSA-26-057-03","discovery":"EXTERNAL"},"workarounds":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"CloudCharge did not respond to CISA's request for coordination. Contact \nCloudCharge using their contact page here: \n<a target=\"_blank\" rel=\"nofollow\" href=\"https://cloudcharge.tech/support/contact/\">https://cloudcharge.tech/support/contact/</a> for more information.\n\n<br>"}],"value":"CloudCharge did not respond to CISA's request for coordination. Contact \nCloudCharge using their contact page here: \n https://cloudcharge.tech/support/contact/  for more information."}],"x_generator":{"engine":"Vulnogram 0.5.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-02T20:38:06.159406Z","id":"CVE-2026-20781","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-02T20:38:12.868Z"}}]}}}