CVE-2026-1744

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{"affected": [{"affectedData": [{"product": "DSL-6641K", "vendor": "D-Link", "versions": [{"status": "affected", "version": "N8.TR069.20131126"}]}], "source": "cna@vuldb.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:dlink:dsl-6641k_firmware:n8.tr069.20131126:*:*:*:*:*:*:*", "matchCriteriaId": "05E08C5F-D951-46E8-B63E-55DD38F30538", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:dlink:dsl-6641k:-:*:*:*:*:*:*:*", "matchCriteriaId": "31A4FE9D-D14B-44B1-993A-9CE12CEDD7E8", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [{"sourceIdentifier": "cna@vuldb.com", "tags": ["unsupported-when-assigned"]}], "descriptions": [{"lang": "en", "value": "A vulnerability was found in D-Link DSL-6641K N8.TR069.20131126. Affected by this issue is the function doSubmitPPP of the file sp_pppoe_user.js. The manipulation of the argument Username results in cross site scripting. The attack may be launched remotely. The exploit has been made public and could be used. This vulnerability only affects products that are no longer supported by the maintainer."}, {"lang": "es", "value": "Se encontr\u00f3 una vulnerabilidad en D-Link DSL-6641K N8.TR069.20131126. Afectada por este problema es la funci\u00f3n doSubmitPPP del archivo sp_pppoe_user.js. La manipulaci\u00f3n del argumento Username resulta en cross site scripting. El ataque puede ser lanzado remotamente. El exploit ha sido hecho p\u00fablico y podr\u00eda ser usado. Esta vulnerabilidad solo afecta a productos que ya no son soportados por el mantenedor."}], "id": "CVE-2026-1744", "lastModified": "2026-06-17T10:16:26.507", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "MULTIPLE", "availabilityImpact": "NONE", "baseScore": 3.3, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:M/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 6.4, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "cna@vuldb.com", "type": "Secondary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 2.4, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 0.9, "impactScore": 1.4, "source": "cna@vuldb.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 1.7, "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": 1.9, "baseSeverity": "LOW", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "PROOF_OF_CONCEPT", "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": "HIGH", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/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": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "cna@vuldb.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-1744", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-02-03T14:18:20.399338Z", "version": "2.0.3"}}]}, "published": "2026-02-02T05:15:59.233", "references": [{"source": "cna@vuldb.com", "tags": ["Exploit", "Third Party Advisory"], "url": "https://tzh00203.notion.site/D-Link-DSL6641K-version-N8-TR069-20131126-XSS-via-sp_pppoe_user-js-Configuration-2eeb5c52018a80d083aaf19efbaa9130?source=copy_link"}, {"source": "cna@vuldb.com", "tags": ["Permissions Required", "VDB Entry"], "url": "https://vuldb.com/?ctiid.343675"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/?id.343675"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/?submit.742439"}, {"source": "cna@vuldb.com", "tags": ["Product"], "url": "https://www.dlink.com/"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Third Party Advisory"], "url": "https://tzh00203.notion.site/D-Link-DSL6641K-version-N8-TR069-20131126-XSS-via-sp_pppoe_user-js-Configuration-2eeb5c52018a80d083aaf19efbaa9130?source=copy_link"}], "sourceIdentifier": "cna@vuldb.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}, {"lang": "en", "value": "CWE-94"}], "source": "cna@vuldb.com", "type": "Secondary"}]}

{}

{"analysis": {"en": {"generated_at": "2026-04-18T00:46:51.726153+00:00", "value": {"mitigation_remediation": ["Replace the DSL\u20116641K unit with a supported model or firmware that includes the fix.", "If replacement is not possible, restrict access to the router\u2019s web interface to a trusted internal network or VPN and block inbound traffic from the public Internet.", "Implement a Web Application Firewall or firewall rule that denies POST requests containing script payloads to the sp_pppoe_user.js endpoint or sanitizes the Username parameter."], "summary": {"action": "Assess Impact", "impact": "Cross Site Scripting"}, "threat_synthesis": {"affected_systems": "Affected device is the D\u2011Link DSL\u20116641K with firmware version N8.TR069.20131126. The product is no longer supported by the manufacturer, and no official patch is available. Consequently the risk applies only to existing units still deployed.", "description_and_impact": "The vulnerability resides in the sp_pppoe_user.js script of the D\u2011Link DSL\u20116641K firmware N8.TR069.20131126. Manipulation of the Username field in the doSubmitPPP function allows an attacker to inject arbitrary script payloads that are executed in the browser context of authenticated users. The injected code can deface web pages, steal session cookies or redirect users to malicious sites. The issue is identified as CWE\u201179 (XSS) and CWE\u201194 (code injection).", "risk_and_exploitability": "The CVSS base score is 4.8, indicating moderate risk, while the EPSS is below 1\u202f% suggesting a low likelihood of widespread exploitation; however, the exploit is publicly known and can be launched remotely via the web interface. Because no patch exists, an organization must rely on isolation or replacement to mitigate the risk."}}}}, "created": "2026-02-02T09:26:10.398816+00:00", "updated": "2026-04-18T01:00:11.617835+00:00", "vendors": ["d-link", "d-link$PRODUCT$dsl-6641k"]}