CVE-2025-46719

{"id": "CVE-2025-46719", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 5.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 2.3}], "cvssMetricV40": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 5.4, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/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": "PASSIVE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "HIGH", "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"}}]}, "published": "2025-05-05T19:15:57.197", "references": [{"url": "https://github.com/open-webui/open-webui/blob/main/src/lib/components/chat/Messages/Markdown/MarkdownTokens.svelte#L269-L279", "tags": ["Product"], "source": "security-advisories@github.com"}, {"url": "https://github.com/open-webui/open-webui/commit/6fd082d55ffaf6eb226efdeebc7155e3693d2d01", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/open-webui/open-webui/security/advisories/GHSA-9f4f-jv96-8766", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/open-webui/open-webui/security/advisories/GHSA-9f4f-jv96-8766", "tags": ["Exploit", "Vendor Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.6.6, a vulnerability in the way certain html tags in chat messages are rendered allows attackers to inject JavaScript code into a chat transcript. The JavaScript code will be executed in the user's browser every time that chat transcript is opened, allowing attackers to retrieve the user's access token and gain full control over their account. Chat transcripts can be shared with other users in the same server, or with the whole open-webui community if \"Enable Community Sharing\" is enabled in the admin panel. If this exploit is used against an admin user, it is possible to achieve Remote Code Execution on the server where the open-webui backend is hosted. This can be done by creating a new function which contains malicious python code. This vulnerability also affects chat transcripts uploaded to `https://openwebui.com/c/<user>/<chat_id>`, allowing for wormable stored XSS in https[:]//openwebui[.]com. Version 0.6.6 contains a patch for the issue."}, {"lang": "es", "value": "Open WebUI es una plataforma de inteligencia artificial autoalojada, dise\u00f1ada para operar completamente sin conexi\u00f3n. Antes de la versi\u00f3n 0.6.6, una vulnerabilidad en la representaci\u00f3n de ciertas etiquetas HTML en los mensajes de chat permit\u00eda a los atacantes inyectar c\u00f3digo JavaScript en una transcripci\u00f3n de chat. El c\u00f3digo JavaScript se ejecutaba en el navegador del usuario cada vez que se abr\u00eda la transcripci\u00f3n, lo que permit\u00eda a los atacantes recuperar su token de acceso y obtener control total sobre su cuenta. Las transcripciones de chat se pueden compartir con otros usuarios del mismo servidor o con toda la comunidad de Open WebUI si la opci\u00f3n \"Habilitar uso compartido de la comunidad\" est\u00e1 activada en el panel de administraci\u00f3n. Si se utiliza este exploit contra un usuario administrador, es posible lograr la ejecuci\u00f3n remota de c\u00f3digo en el servidor donde se aloja el backend de Open WebUI. Esto se puede lograr mediante la creaci\u00f3n de una nueva funci\u00f3n que contenga c\u00f3digo Python malicioso. Esta vulnerabilidad tambi\u00e9n afecta a las transcripciones de chat subidas a `https://openwebui.com/c//`, lo que permite XSS almacenado susceptible de ser atacado por gusanos en https[:]//openwebui[.]com. La versi\u00f3n 0.6.6 contiene un parche para el problema."}], "lastModified": "2025-06-17T20:18:16.003", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3ED6F2B9-FE95-47B1-A872-5565648E7418", "versionEndExcluding": "0.6.6"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}