CVE-2026-45343

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{"affected": [{"affectedData": [{"product": "LinkAce", "vendor": "Kovah", "versions": [{"status": "affected", "version": "< 2.5.6"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "LinkAce is a self-hosted archive to collect website links. Prior to 2.5.6, LinkAce contains a stored cross-site scripting vulnerability that allows a low-privilege user to execute arbitrary JavaScript in an administrator's browser session. This affects instances configured with SSO/OAuth authentication, which is one of the supported authentication methods in LinkAce. An attacker who sets their OAuth display name to a malicious script and then creates an API token will plant a persistent XSS payload in the audit log. When any admin navigates to /system/audit, the payload executes in the admin's browser context. This enables session cookie theft, CSRF token exfiltration (exposed in the la-app-data meta tag), or any other action the admin can perform. This vulnerability is fixed in 2.5.6."}, {"lang": "es", "value": "LinkAce es un archivo autoalojado para recopilar enlaces de sitios web. Anteriormente a la 2.5.6, LinkAce contiene una vulnerabilidad de cross-site scripting almacenado que permite a un usuario con bajos privilegios ejecutar JavaScript arbitrario en la sesi\u00f3n del navegador de un administrador. Esto afecta a las instancias configuradas con autenticaci\u00f3n SSO/OAuth, que es uno de los m\u00e9todos de autenticaci\u00f3n soportados en LinkAce. Un atacante que establece su nombre de visualizaci\u00f3n de OAuth a un script malicioso y luego crea un token de API plantar\u00e1 una carga \u00fatil de XSS persistente en el registro de auditor\u00eda. Cuando cualquier administrador navega a /system/audit, la carga \u00fatil se ejecuta en el contexto del navegador del administrador. Esto permite el robo de la cookie de sesi\u00f3n, la exfiltraci\u00f3n de tokens CSRF (expuesto en la metaetiqueta la-app-data) o cualquier otra acci\u00f3n que el administrador pueda realizar. Esta vulnerabilidad est\u00e1 corregida en la versi\u00f3n 2.5.6."}], "id": "CVE-2026-45343", "lastModified": "2026-07-21T10:10:00.103", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.5, "baseSeverity": "HIGH", "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": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/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": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-45343", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-05-30T02:19:30.595740Z", "version": "2.0.3"}}]}, "published": "2026-05-28T22:17:00.367", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/Kovah/LinkAce/security/advisories/GHSA-jx4g-ph82-x9mm"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/Kovah/LinkAce/security/advisories/GHSA-jx4g-ph82-x9mm"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2.5.6)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "LinkAce", "source": "cna", "vendor": "Kovah"}, "product": "linkace", "vendor": "kovah"}], "created": "2026-05-28T22:30:27.929889+00:00", "updated": "2026-05-28T22:30:28.286412+00:00", "vendors": ["kovah", "kovah$PRODUCT$linkace"]}