{"id":"CVE-2025-40899","state":"PUBLISHED","title":"Stored Cross-Site Scripting (XSS) in Assets and Nodes in Guardian/CMC before 26.0.0","description":"A Stored Cross-Site Scripting vulnerability was discovered in the Assets and Nodes functionality due to improper validation of an input parameter. An authenticated user with custom fields privileges can define a malicious custom field containing a JavaScript payload. When the victim views the Assets or Nodes pages, the XSS executes in their browser context, allowing the attacker to perform unauthorized actions as the victim, such as modify application data, disrupt application availability, and access limited sensitive information.","publishedAt":"2026-04-15T08:18:36.427Z","updatedAt":"2026-08-11T12:22:57.206Z","severity":{"score":7.1,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:H/VA:H/SC:L/SI:L/SA:L","source":"Nozomi"},"assigner":"Nozomi","products":["Nozomi Networks Guardian","Nozomi Networks CMC"],"affected":[{"vendor":"Nozomi Networks","product":"Guardian","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"26.0.0","versionType":"semver"}]},{"vendor":"Nozomi Networks","product":"CMC","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"26.0.0","versionType":"semver"}]}],"references":["https://security.nozominetworks.com/NN-2026:2-01","https://cert-portal.siemens.com/productcert/html/ssa-827968.html"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:09:09.358Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/40xxx/CVE-2025-40899.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-40899","state":"PUBLISHED","datePublished":"2026-04-15T08:18:36.427Z","dateUpdated":"2026-08-11T12:22:57.206Z","assignerShortName":"Nozomi","assignerOrgId":"bec8025f-a851-46e5-b3a3-058e6b0aa23c","dateReserved":"2025-04-16T09:04:35.923Z"},"containers":{"cna":{"title":"Stored Cross-Site Scripting (XSS) in Assets and Nodes in Guardian/CMC before 26.0.0","descriptions":[{"lang":"en","value":"A Stored Cross-Site Scripting vulnerability was discovered in the Assets and Nodes functionality due to improper validation of an input parameter. An authenticated user with custom fields privileges can define a malicious custom field containing a JavaScript payload. When the victim views the Assets or Nodes pages, the XSS executes in their browser context, allowing the attacker to perform unauthorized actions as the victim, such as modify application data, disrupt application availability, and access limited sensitive information."}],"affected":[{"vendor":"Nozomi Networks","product":"Guardian","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"26.0.0","versionType":"semver"}]},{"vendor":"Nozomi Networks","product":"CMC","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"26.0.0","versionType":"semver"}]}],"references":[{"url":"https://security.nozominetworks.com/NN-2026:2-01"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"PASSIVE","vulnConfidentialityImpact":"LOW","subConfidentialityImpact":"LOW","vulnIntegrityImpact":"HIGH","subIntegrityImpact":"LOW","vulnAvailabilityImpact":"HIGH","subAvailabilityImpact":"LOW","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":7.1,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:H/VA:H/SC:L/SI:L/SA:L"}},{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseSeverity":"HIGH","baseScore":8.9,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:H"}}],"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":"Nozomi","orgId":"bec8025f-a851-46e5-b3a3-058e6b0aa23c","dateUpdated":"2026-04-15T08:18:36.427Z"},"datePublic":"2026-04-15T07:00:00.000Z","impacts":[{"capecId":"CAPEC-592","descriptions":[{"lang":"en","value":"CAPEC-592 Stored XSS"}]}],"cpeApplicability":[{"operator":"OR","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:nozomi_networks:guardian:*:*:*:*:*:*:*:*","versionStartIncluding":"0","versionEndExcluding":"26.0.0"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:nozomi_networks:cmc:*:*:*:*:*:*:*:*","versionStartIncluding":"0","versionEndExcluding":"26.0.0"}]}]}],"workarounds":[{"lang":"en","value":"Use internal firewall features to limit access to the web management interface.","supportingMedia":[{"type":"text/html","base64":false,"value":"Use internal firewall features to limit access to the web management interface.<br>"}]},{"lang":"en","value":"Review all accounts with access to it and delete unnecessary ones.","supportingMedia":[{"type":"text/html","base64":false,"value":"Review all accounts with access to it and delete unnecessary ones.<br>"}]},{"lang":"en","value":"Review existing custom fields.","supportingMedia":[{"type":"text/html","base64":false,"value":"Review existing custom fields.<br>"}]}],"solutions":[{"lang":"en","value":"Upgrade to v26.0.0 or later.","supportingMedia":[{"type":"text/html","base64":false,"value":"Upgrade to v26.0.0 or later.<br>"}]}],"credits":[{"lang":"en","value":"This issue was found by Andrea Palanca of Nozomi Networks Product Security team during an internal investigation.","type":"finder"}],"source":{"discovery":"INTERNAL"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-15T13:20:15.823575Z","id":"CVE-2025-40899","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-15T13:20:23.839Z"}},{"affected":[{"vendor":"Siemens","product":"RUGGEDCOM APE1808","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThan":"*","versionType":"custom"}]}],"references":[{"url":"https://cert-portal.siemens.com/productcert/html/ssa-827968.html"}],"providerMetadata":{"shortName":"siemens-SADP","orgId":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e","dateUpdated":"2026-08-11T12:22:57.206Z"},"x_adpType":"supplier"}]}}}