CVE-2025-12758

{"id": "CVE-2025-12758", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-12758", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2025-12-03T16:27:54.528645Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "report@snyk.io", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}], "cvssMetricV40": [{"type": "Secondary", "source": "report@snyk.io", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 7.7, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/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", "exploitMaturity": "PROOF_OF_CONCEPT", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "report@snyk.io", "affectedData": [{"vendor": "n/a", "product": "validator", "versions": [{"status": "affected", "version": "0", "lessThan": "13.15.22", "versionType": "semver"}]}, {"vendor": "n/a", "product": "org.webjars.npm:validator", "versions": [{"status": "affected", "version": "0", "lessThan": "13.15.22", "versionType": "semver"}]}]}], "published": "2025-11-27T05:16:12.193", "references": [{"url": "https://gist.github.com/koral--/ad31208b25b9e3d1e2e35f1d4d72572e", "tags": ["Exploit", "Third Party Advisory"], "source": "report@snyk.io"}, {"url": "https://github.com/validatorjs/validator.js/pull/2616", "tags": ["Issue Tracking", "Patch"], "source": "report@snyk.io"}, {"url": "https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-14152011", "source": "report@snyk.io"}, {"url": "https://security.snyk.io/vuln/SNYK-JS-VALIDATOR-13653476", "tags": ["Exploit", "Third Party Advisory"], "source": "report@snyk.io"}, {"url": "http://seclists.org/fulldisclosure/2026/Jan/27", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://security.snyk.io/vuln/SNYK-JS-VALIDATOR-13653476", "tags": ["Exploit", "Third Party Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "report@snyk.io", "description": [{"lang": "en", "value": "CWE-792"}]}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-172"}]}], "descriptions": [{"lang": "en", "value": "Versions of the package validator before 13.15.22 are vulnerable to Incomplete Filtering of One or More Instances of Special Elements in the isLength() function that does not take into account Unicode variation selectors (\\uFE0F, \\uFE0E) appearing in a sequence which lead to improper string length calculation. This can lead to an application using isLength for input validation accepting strings significantly longer than intended, resulting in issues like data truncation in databases, buffer overflows in other system components, or denial-of-service."}, {"lang": "es", "value": "Versiones del paquete validador anteriores a la 13.15.22 son vulnerables a un Filtrado Incompleto de Una o M\u00e1s Instancias de Elementos Especiales en la funci\u00f3n isLength() que no tiene en cuenta los selectores de variaci\u00f3n Unicode (\\uFE0F, \\uFE0E) que aparecen en una secuencia, lo que lleva a un c\u00e1lculo incorrecto de la longitud de la cadena. Esto puede llevar a que una aplicaci\u00f3n que utiliza isLength para la validaci\u00f3n de entrada acepte cadenas significativamente m\u00e1s largas de lo previsto, lo que resulta en problemas como truncamiento de datos en bases de datos, desbordamientos de b\u00fafer en otros componentes del sistema o denegaci\u00f3n de servicio."}], "lastModified": "2026-10-19T13:10:00.110", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:validator_project:validator:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "553CB501-5344-4AD6-84A3-2E69A53BC95D", "versionEndExcluding": "13.15.22"}], "operator": "OR"}]}], "sourceIdentifier": "report@snyk.io"}