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CVE-2026-39424

MaxKB is an open-source AI assistant for enterprise. In versions 2.7.1 and below, the chat export feature is vulnerable to Improper Neutralization of Formula Elements in a CSV File. When an administrator exports the application chat history to an Excel file (.xlsx) via the /admin/api/workspace/{workspace_id}/application/{application_id}/chat/export endpoint, strings starting with formula characters are written directly without proper sanitization. Opening this file in spreadsheet applications li
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:3c1a90f83f7d3eb208aa89a726c32877f3e75ff63e9c4f11cf2138759dafca26
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"MaxKB","vendor":"1Panel-dev","versions":[{"status":"affected","version":"< 2.8.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:94b7e1e64e5b705906b0b5a1e1c080fef2fa3612f2a90a80a2d1cfbf613d6dc8 · sha256:1551dad85636121a… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.3,"baseSeverity":"MEDIUM","privilegesRequired":"LOW","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"LOW"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:94b7e1e64e5b705906b0b5a1e1c080fef2fa3612f2a90a80a2d1cfbf613d6dc8 · sha256:1551dad85636121a… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-1236","description":"CWE-1236: Improper Neutralization of Formula Elements in a CSV File","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:94b7e1e64e5b705906b0b5a1e1c080fef2fa3612f2a90a80a2d1cfbf613d6dc8 · sha256:1551dad85636121a… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/1Panel-dev/MaxKB/commit/24cd68acae5f726eed828e2ac801827a2a70536f","tags":["x_refsource_MISC"],"url":"https://github.com/1Panel-dev/MaxKB/commit/24cd68acae5f726eed828e2ac801827a2a70536f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:94b7e1e64e5b705906b0b5a1e1c080fef2fa3612f2a90a80a2d1cfbf613d6dc8 · sha256:1551dad85636121a… · /containers/cna/references/1
{"name":"https://github.com/1Panel-dev/MaxKB/releases/tag/v2.8.0","tags":["x_refsource_MISC"],"url":"https://github.com/1Panel-dev/MaxKB/releases/tag/v2.8.0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:94b7e1e64e5b705906b0b5a1e1c080fef2fa3612f2a90a80a2d1cfbf613d6dc8 · sha256:1551dad85636121a… · /containers/cna/references/2
{"name":"https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-rr4r-7cj2-29vp","tags":["x_refsource_CONFIRM"],"url":"https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-rr4r-7cj2-29vp"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:94b7e1e64e5b705906b0b5a1e1c080fef2fa3612f2a90a80a2d1cfbf613d6dc8 · sha256:1551dad85636121a… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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