CVE Explorer

CVE-2026-44549

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.0, Excel file attachments are previewed in an unsafe way. A crafted XLSX file payload can be used to cause the sheetjs function sheet_to_html to embed an XSS payload into the generated HTML. This is subsequently added to the DOM unsanitized via @html causing the payload to trigger. This vulnerability is fixed in 0.8.0.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:b5f919b87f43a73d0cf5dbf7073970ec86e305088d4d69900883958e38cadc6b

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"open-webui","vendor":"open-webui","versions":[{"status":"affected","version":"< 0.8.0"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:1ea3cdf2ff8f49fa324fd05a9c10909ff735adc806f0e989530c705c560512f0 · sha256:50057f80730a2f8d… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.3,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:1ea3cdf2ff8f49fa324fd05a9c10909ff735adc806f0e989530c705c560512f0 · sha256:50057f80730a2f8d… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-79","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:1ea3cdf2ff8f49fa324fd05a9c10909ff735adc806f0e989530c705c560512f0 · sha256:50057f80730a2f8d… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions

{"tags":["exploit"],"url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-jwf8-pv5p-vhmc"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:1ea3cdf2ff8f49fa324fd05a9c10909ff735adc806f0e989530c705c560512f0 · sha256:50057f80730a2f8d… · /containers/adp/0/references/0

{"name":"https://github.com/open-webui/open-webui/security/advisories/GHSA-jwf8-pv5p-vhmc","tags":["x_refsource_CONFIRM"],"url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-jwf8-pv5p-vhmc"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:1ea3cdf2ff8f49fa324fd05a9c10909ff735adc806f0e989530c705c560512f0 · sha256:50057f80730a2f8d… · /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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