{"id":"CVE-2026-27870","state":"PUBLISHED","title":"CROSS-SITE SCRIPTING (XSS) VIA MALICIOUS FILE UPLOAD ON REGESTA SMART HD-PLC OF TELDAT","description":"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.","publishedAt":"2026-06-17T08:13:37.162Z","updatedAt":"2026-07-01T11:18:07.193Z","severity":{"score":4.8,"label":"Medium","version":"4.0","vector":"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","source":"HackRTU"},"assigner":"HackRTU","products":["Teldat Regesta Smart HD-PLC - TLDPH16D2"],"affected":[{"vendor":"Teldat","product":"Regesta Smart HD-PLC - TLDPH16D2","defaultStatus":"unknown","versions":[{"version":"11.02.05.10.02","status":"affected"},{"version":"11.02.06.00.02","status":"unaffected"}]}],"references":["https://www.hackrtu.com/blog/CNA-HRTU-0003/","https://www.hackrtu.com/blog/CNA-CVE-2026-27870/","https://www.teldat.com/es/","https://support.teldat.com/images/content/docs/Teldat_dm1087_regesta_smart_nessum_series_installation(1).pdf","https://support.teldat.com/portal/supportcontent?page=cgs-customer-global-support&none=true&language=en-US"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:11:31.369Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/27xxx/CVE-2026-27870.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-27870","state":"PUBLISHED","datePublished":"2026-06-17T08:13:37.162Z","dateUpdated":"2026-07-01T11:18:07.193Z","assignerShortName":"HackRTU","assignerOrgId":"ffb98d57-deaa-4918-a669-5225ccc13e39","dateReserved":"2026-02-24T08:59:28.139Z"},"containers":{"cna":{"title":"CROSS-SITE SCRIPTING (XSS) VIA MALICIOUS FILE UPLOAD ON REGESTA SMART HD-PLC OF TELDAT","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."}],"affected":[{"vendor":"Teldat","product":"Regesta Smart HD-PLC - TLDPH16D2","defaultStatus":"unknown","versions":[{"version":"11.02.05.10.02","status":"affected"},{"version":"11.02.06.00.02","status":"unaffected"}]}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79 Improper neutralization of input during web page generation ('cross-site scripting')","type":"CWE"}]}],"providerMetadata":{"shortName":"HackRTU","orgId":"ffb98d57-deaa-4918-a669-5225ccc13e39","dateUpdated":"2026-07-01T11:18:07.193Z"},"datePublic":"2026-06-17T08:00:00.000Z","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)"}]}],"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:*:*:*:*:*:*:*"}]}]}],"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&nbsp;<b>11.02.06.00.02</b>&nbsp;which solves the security problems detected in the affected version. The end user has to download the new version in the <b>Teldat - Client Support Portal</b> and implement it in the device (\n<a href=\"https://support.teldat.com/portal/supportcontent?page=cgs-customer-global-support&amp;none=true&amp;language=en-US\" title=\"https://support.teldat.com/portal/supportcontent?page=cgs-customer-global-support&amp;none=true&amp;language=en-US\">https://support.teldat.com/portal/supportcontent?page=cgs-customer-global-support&amp;none=true&amp;language=en-US</a>)."}]}],"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":[{"title":"CISA ADP Vulnrichment","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"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-17T12:47:53.316Z"}}]}}}