{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-34808", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-03-30T20:26:18.725Z", "datePublished": "2026-04-02T14:46:01.895Z", "dateUpdated": "2026-04-03T19:56:54.436Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-04-02T14:46:01.895Z"}, "title": "Endian Firewall /cgi-bin/outgoingfw.cgi remark Stored Cross-Site Scripting", "descriptions": [{"lang": "en", "value": "Endian Firewall version 3.3.25 and prior allow stored cross-site scripting (XSS) via the remark parameter to /cgi-bin/outgoingfw.cgi. An authenticated attacker can inject arbitrary JavaScript that is stored and executed when other users view the affected page."}], "tags": ["x_open-source"], "datePublic": "2025-12-03T00:00:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-79", "description": "CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", "type": "CWE"}]}], "affected": [{"vendor": "Endian", "product": "Endian Firewall", "versions": [{"version": "3.3.25", "status": "affected", "versionType": "semver"}], "defaultStatus": "unaffected"}], "cpeApplicability": [{"nodes": [{"operator": "OR", "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:endian:firewall:3.3.25:*:*:*:*:*:*:*"}, {"vulnerable": true, "criteria": "cpe:2.3:a:endian:firewall:2.1.2:*:*:*:*:*:*:*"}, {"vulnerable": true, "criteria": "cpe:2.3:a:endian:firewall:2.4:*:*:*:*:*:*:*"}]}]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "NONE", "subConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "subIntegrityImpact": "LOW", "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": 5.1, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"}}, {"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE", "version": "3.1", "baseSeverity": "MEDIUM", "baseScore": 6.4, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N"}}], "references": [{"url": "https://help.endian.com/hc/en-us/sections/360004371358-Community", "name": "Endian Release Notes", "tags": ["release-notes"]}, {"name": "VulnCheck Advisory: Endian Firewall /cgi-bin/outgoingfw.cgi remark Stored Cross-Site Scripting", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/endian-firewall-cgi-bin-outgoingfw-cgi-remark-stored-cross-site-scripting"}], "credits": [{"lang": "en", "value": "Alex Williams from Pellera Technologies", "type": "finder"}, {"lang": "en", "value": "VulnCheck", "type": "coordinator"}], "x_generator": {"engine": "vulncheck"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-04-03T19:56:39.551920Z", "id": "CVE-2026-34808", "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": "2026-04-03T19:56:54.436Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-34808", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-04-03T19:56:39.551920Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-03T19:56:49.169Z"}}], "cna": {"tags": ["x_open-source"], "title": "Endian Firewall /cgi-bin/outgoingfw.cgi remark Stored Cross-Site Scripting", "credits": [{"lang": "en", "type": "finder", "value": "Alex Williams from Pellera Technologies"}, {"lang": "en", "type": "coordinator", "value": "VulnCheck"}], "metrics": [{"format": "CVSS", "cvssV4_0": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 5.1, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "PASSIVE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "subIntegrityImpact": "LOW", "vulnIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "LOW", "vulnConfidentialityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}, {"format": "CVSS", "cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "Endian", "product": "Endian Firewall", "versions": [{"status": "affected", "version": "3.3.25", "versionType": "semver"}], "defaultStatus": "unaffected"}], "datePublic": "2025-12-03T00:00:00.000Z", "references": [{"url": "https://help.endian.com/hc/en-us/sections/360004371358-Community", "name": "Endian Release Notes", "tags": ["release-notes"]}, {"url": "https://www.vulncheck.com/advisories/endian-firewall-cgi-bin-outgoingfw-cgi-remark-stored-cross-site-scripting", "name": "VulnCheck Advisory: Endian Firewall /cgi-bin/outgoingfw.cgi remark Stored Cross-Site Scripting", "tags": ["third-party-advisory"]}], "x_generator": {"engine": "vulncheck"}, "descriptions": [{"lang": "en", "value": "Endian Firewall version 3.3.25 and prior allow stored cross-site scripting (XSS) via the remark parameter to /cgi-bin/outgoingfw.cgi. An authenticated attacker can inject arbitrary JavaScript that is stored and executed when other users view the affected page."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-79", "description": "CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"}]}], "cpeApplicability": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:endian:firewall:3.3.25:*:*:*:*:*:*:*", "vulnerable": true}, {"criteria": "cpe:2.3:a:endian:firewall:2.1.2:*:*:*:*:*:*:*", "vulnerable": true}, {"criteria": "cpe:2.3:a:endian:firewall:2.4:*:*:*:*:*:*:*", "vulnerable": true}], "operator": "OR"}]}], "providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-04-02T14:46:01.895Z"}}}, "cveMetadata": {"cveId": "CVE-2026-34808", "state": "PUBLISHED", "dateUpdated": "2026-04-03T19:56:54.436Z", "dateReserved": "2026-03-30T20:26:18.725Z", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "datePublished": "2026-04-02T14:46:01.895Z", "assignerShortName": "VulnCheck"}, "dataVersion": "5.2"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:endian:firewall_community:*:*:*:*:*:*:*:*", "matchCriteriaId": "45E1D867-BFFB-431E-A9A8-13BBE099BAF3", "versionEndIncluding": "3.3.25", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Endian Firewall version 3.3.25 and prior allow stored cross-site scripting (XSS) via the remark parameter to /cgi-bin/outgoingfw.cgi. An authenticated attacker can inject arbitrary JavaScript that is stored and executed when other users view the affected page."}], "id": "CVE-2026-34808", "lastModified": "2026-04-07T14:28:55.847", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.1, "impactScore": 2.7, "source": "disclosure@vulncheck.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.3, "impactScore": 2.7, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 5.1, "baseSeverity": "MEDIUM", "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": "LOW", "subIntegrityImpact": "LOW", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/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": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "disclosure@vulncheck.com", "type": "Secondary"}]}, "published": "2026-04-02T15:16:48.290", "references": [{"source": "disclosure@vulncheck.com", "tags": ["Release Notes"], "url": "https://help.endian.com/hc/en-us/sections/360004371358-Community"}, {"source": "disclosure@vulncheck.com", "tags": ["Third Party Advisory"], "url": "https://www.vulncheck.com/advisories/endian-firewall-cgi-bin-outgoingfw-cgi-remark-stored-cross-site-scripting"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "disclosure@vulncheck.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "3.3.25"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Endian Firewall", "source": "cna", "vendor": "Endian"}, "product": "firewall", "vendor": "endian"}], "analysis": {"en": {"generated_at": "2026-04-07T20:52:14.441699+00:00", "value": {"mitigation_remediation": ["Upgrade Endian Firewall to a version released after 3.3.25, which includes the fix for the unsanitized remark field.", "Delete or manually sanitize any existing remarks that contain HTML or script tags via the administrative interface.", "Restrict the privileges of accounts that can edit outgoing firewall rules to the minimum necessary.", "Monitor logs for unusual activity involving /cgi\u2011bin/outgoingfw.cgi to detect potential exploitation attempts."], "summary": {"action": "Patch", "impact": "Stored Cross\u2011Site Scripting via authenticated remark injection"}, "threat_synthesis": {"affected_systems": "Affected appliances include Endian Firewall versions 2.1.2, 2.4, 3.3.25, and the Community edition. All releases up to and including 3.3.25 store the remark input without proper sanitization and are vulnerable.", "description_and_impact": "The flaw allows an authenticated attacker to store arbitrary JavaScript in the remark field of /cgi\u2011bin/outgoingfw.cgi. When other users view the page, the script executes on their browsers, enabling client\u2011side code execution. This stored XSS threatens the confidentiality and integrity of users who access that page.", "risk_and_exploitability": "The CVSS score of 5.1 places the issue in the moderate range. An EPSS score below 1\u202f% indicates a low likelihood of public exploitation. The vulnerability is not listed in CISA\u2019s KEV catalog. Exploitation requires an authenticated account with permissions to modify outgoing firewall rules. Once a malicious remark is stored, any user who accesses that remark will execute the injected code. The attack, therefore, is limited to organizations that have multiple privileged users and does not involve an unauthenticated remote vector."}}}}, "created": "2026-04-02T20:11:55.081412+00:00", "updated": "2026-04-08T19:55:55.116262+00:00", "vendors": ["endian", "endian$PRODUCT$firewall"]}