{"id":"CVE-2026-39423","state":"PUBLISHED","title":"Stored XSS via Eval Injection in EchartsRander Component","description":"MaxKB is an open-source AI assistant for enterprise. Versions 2.7.1 and below contain an Eval Injection vulnerability in the Markdown rendering engine that allows any user capable of interacting with the AI chat interface to execute arbitrary JavaScript in the browsers of other users, including administrators, resulting in Stored Cross-Site Scripting (XSS). This issue has been fixed in version 2.8.0.","publishedAt":"2026-04-14T00:28:47.572Z","updatedAt":"2026-04-14T15:55:17.386Z","severity":{"score":6.9,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["1Panel-dev MaxKB"],"affected":[{"vendor":"1Panel-dev","product":"MaxKB","versions":[{"version":"< 2.8.0","status":"affected"}]}],"references":["https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-462x-99gf-mp79","https://github.com/1Panel-dev/MaxKB/commit/34fb95bde9574c5b3a734ab00c7f29b9e7d32669","https://github.com/1Panel-dev/MaxKB/releases/tag/v2.8.0"],"weaknesses":["CWE-79","CWE-95"],"ingestedAt":"2026-10-29T20:11:50.837Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/39xxx/CVE-2026-39423.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-39423","state":"PUBLISHED","datePublished":"2026-04-14T00:28:47.572Z","dateUpdated":"2026-04-14T15:55:17.386Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-04-07T00:23:30.596Z"},"containers":{"cna":{"title":"Stored XSS via Eval Injection in EchartsRander Component","descriptions":[{"lang":"en","value":"MaxKB is an open-source AI assistant for enterprise. Versions 2.7.1 and below contain an Eval Injection vulnerability in the Markdown rendering engine that allows any user capable of interacting with the AI chat interface to execute arbitrary JavaScript in the browsers of other users, including administrators, resulting in Stored Cross-Site Scripting (XSS). This issue has been fixed in version 2.8.0."}],"affected":[{"vendor":"1Panel-dev","product":"MaxKB","versions":[{"version":"< 2.8.0","status":"affected"}]}],"references":[{"url":"https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-462x-99gf-mp79","name":"https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-462x-99gf-mp79","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/1Panel-dev/MaxKB/commit/34fb95bde9574c5b3a734ab00c7f29b9e7d32669","name":"https://github.com/1Panel-dev/MaxKB/commit/34fb95bde9574c5b3a734ab00c7f29b9e7d32669","tags":["x_refsource_MISC"]},{"url":"https://github.com/1Panel-dev/MaxKB/releases/tag/v2.8.0","name":"https://github.com/1Panel-dev/MaxKB/releases/tag/v2.8.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"PASSIVE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":6.9,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:H/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"}]},{"descriptions":[{"cweId":"CWE-95","lang":"en","description":"CWE-95: Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-04-14T00:28:47.572Z"},"source":{"advisory":"GHSA-462x-99gf-mp79","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-14T15:55:00.087244Z","id":"CVE-2026-39423","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-14T15:55:17.386Z"}}]}}}