{"id":"CVE-2026-42138","state":"PUBLISHED","title":"Dify Vulnerable to Stored XSS via SVG-file upload","description":"Dify is an open-source LLM app development platform. Prior to version 1.13.1, using the method POST /api/files/upload, any unauthenticated user can upload an SVG file with XSS. The method POST /v1/files/upload, which requires authentication through the application API, is also vulnerable. This issue has been patched in version 1.13.1.","publishedAt":"2026-05-04T17:34:36.199Z","updatedAt":"2026-05-04T18:48:58.586Z","severity":{"score":6.9,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["langgenius dify"],"affected":[{"vendor":"langgenius","product":"dify","versions":[{"version":"< 1.13.1","status":"affected"}]}],"references":["https://github.com/langgenius/dify/security/advisories/GHSA-cg94-8v83-7hjj","https://github.com/langgenius/dify/releases/tag/1.13.1"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/42xxx/CVE-2026-42138.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-42138","state":"PUBLISHED","datePublished":"2026-05-04T17:34:36.199Z","dateUpdated":"2026-05-04T18:48:58.586Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-04-24T17:15:21.833Z"},"containers":{"cna":{"title":"Dify Vulnerable to Stored XSS via SVG-file upload","descriptions":[{"lang":"en","value":"Dify is an open-source LLM app development platform. Prior to version 1.13.1, using the method POST /api/files/upload, any unauthenticated user can upload an SVG file with XSS. The method POST /v1/files/upload, which requires authentication through the application API, is also vulnerable. This issue has been patched in version 1.13.1."}],"affected":[{"vendor":"langgenius","product":"dify","versions":[{"version":"< 1.13.1","status":"affected"}]}],"references":[{"url":"https://github.com/langgenius/dify/security/advisories/GHSA-cg94-8v83-7hjj","name":"https://github.com/langgenius/dify/security/advisories/GHSA-cg94-8v83-7hjj","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/langgenius/dify/releases/tag/1.13.1","name":"https://github.com/langgenius/dify/releases/tag/1.13.1","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":6.9,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-05-04T17:34:36.199Z"},"source":{"advisory":"GHSA-cg94-8v83-7hjj","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/langgenius/dify/security/advisories/GHSA-cg94-8v83-7hjj","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-04T18:48:50.719111Z","id":"CVE-2026-42138","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-04T18:48:58.586Z"}}]}}}