{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-27870","assignerOrgId":"ffb98d57-deaa-4918-a669-5225ccc13e39","state":"PUBLISHED","assignerShortName":"HackRTU","dateReserved":"2026-02-24T08:59:28.139Z","datePublished":"2026-06-17T08:13:37.162Z","dateUpdated":"2026-07-01T11:18:07.193Z"},"containers":{"cna":{"providerMetadata":{"orgId":"ffb98d57-deaa-4918-a669-5225ccc13e39","shortName":"HackRTU","dateUpdated":"2026-07-01T11:18:07.193Z"},"title":"CROSS-SITE SCRIPTING (XSS) VIA MALICIOUS FILE UPLOAD ON REGESTA SMART HD-PLC OF TELDAT","datePublic":"2026-06-17T08:00:00.000Z","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-79","description":"CWE-79 Improper neutralization of input during web page generation ('cross-site scripting')","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-242","descriptions":[{"lang":"en","value":"CAPEC-242 Code Injection"}]},{"capecId":"CAPEC-63","descriptions":[{"lang":"en","value":"CAPEC-63 Cross-Site Scripting (XSS)"}]}],"affected":[{"vendor":"Teldat","product":"Regesta Smart HD-PLC - TLDPH16D2","versions":[{"status":"affected","version":"11.02.05.10.02"},{"status":"unaffected","version":"11.02.06.00.02"}],"defaultStatus":"unknown"}],"cpeApplicability":[{"operator":"OR","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:teldat:regesta_smart_hd-plc_-_tldph16d2:11.02.05.10.02:*:*:*:*:*:*:*"},{"vulnerable":false,"criteria":"cpe:2.3:a:teldat:regesta_smart_hd-plc_-_tldph16d2:11.02.06.00.02:*:*:*:*:*:*:*"}]}]}],"descriptions":[{"lang":"en","value":"An attacker with access via network to the Regesta Smart HD-PLC of the provider Teldat (in this case, registration action IS required) who has the vulnerable software could, introduce arbitrary JavaScript by injecting a Cross-site Scripting (XSS) payload into the 'Hostname' field of the configuration file resulting in a XSS in the path /upgrade/query.php?cmd=p+3%3Bversion. This issue affects Regesta Smart HD-PLC - TLDPH16D2: \n11.02.05.10.02.","supportingMedia":[{"type":"text/html","base64":false,"value":"An attacker with access via network to the Regesta Smart HD-PLC of the provider Teldat (in this case, registration action IS required) who has the vulnerable software could, introduce arbitrary JavaScript by injecting a Cross-site Scripting (XSS) payload into the 'Hostname' field of the configuration file resulting in a XSS in the path /upgrade/query.php?cmd=p+3%3Bversion. This issue affects Regesta Smart HD-PLC - TLDPH16D2: \n11.02.05.10.02."}]}],"references":[{"url":"https://www.hackrtu.com/blog/CNA-HRTU-0003/","tags":["technical-description","patch"]},{"url":"https://www.hackrtu.com/blog/CNA-CVE-2026-27870/","tags":["technical-description","patch"]},{"url":"https://www.teldat.com/es/","tags":["product"]},{"url":"https://support.teldat.com/images/content/docs/Teldat_dm1087_regesta_smart_nessum_series_installation(1).pdf","tags":["product"]},{"url":"https://support.teldat.com/portal/supportcontent?page=cgs-customer-global-support&none=true&language=en-US","tags":["patch"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"HIGH","userInteraction":"PASSIVE","vulnConfidentialityImpact":"LOW","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","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":"MEDIUM","baseScore":4.8,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"}}],"solutions":[{"lang":"en","value":"The provider has implement the new version 11.02.06.00.02 which solves the security problems detected in the affected version. The end user has to download the new version in the Teldat - Client Support Portal and implement it in the device (\n https://support.teldat.com/portal/supportcontent?page=cgs-customer-global-support&none=true&language=en-US ).","supportingMedia":[{"type":"text/html","base64":false,"value":"The provider has implement the new version 11.02.06.00.02 which solves the security problems detected in the affected version. The end user has to download the new version in the Teldat - Client Support Portal and implement it in the device (\nhttps://support.teldat.com/portal/supportcontent?page=cgs-customer-global-support&none=true&language=en-US)."}]}],"timeline":[{"time":"2026-02-20T09:00:00.000Z","lang":"en","value":"Vulnerability detection by the researchers"},{"time":"2026-02-22T09:00:00.000Z","lang":"en","value":"Report from researchers to the CNA of HackRTU"},{"time":"2026-02-25T09:00:00.000Z","lang":"en","value":"Report from HackRTU CNA to the provider"},{"time":"2026-05-29T08:00:00.000Z","lang":"en","value":"New version published by the provider"},{"time":"2026-06-17T08:00:00.000Z","lang":"en","value":"Vulnerabilities published by HackRTU's CNA"}],"credits":[{"lang":"en","value":"Aarón Flecha Menéndez","type":"finder"},{"lang":"en","value":"Víctor Bello Cuevas","type":"finder"}],"source":{"advisory":"HRTU#0003","discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.2"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-17T12:47:25.070527Z","id":"CVE-2026-27870","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-06-17T12:47:53.316Z"}}]}}