CVE Explorer

CVE-2026-54007

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, the chat message listener allows non-same-origin input:prompt and action:submit messages, so an external site can set prompt text and trigger submitPrompt() in an authenticated victim session. I validated this with a cross-origin attacker page that auto-posted messages and caused unauthorized POST /api/v1/chats/new and POST /api/chat/completions requests containing attacker-controll

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:a3bcff3c66cd8405ee02f699caeee56992854ac4981899eddf81b8766112e34d

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":"< 0.9.6"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:82b9f1160b0e851bff02f543e90b4ab9896fca24dbb5516ae00ce25e311d5ed1 · sha256:977cb5b20bca45d0… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":7.1,"baseSeverity":"HIGH","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:82b9f1160b0e851bff02f543e90b4ab9896fca24dbb5516ae00ce25e311d5ed1 · sha256:977cb5b20bca45d0… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion

{"cweId":"CWE-346","description":"CWE-346: Origin Validation Error","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:82b9f1160b0e851bff02f543e90b4ab9896fca24dbb5516ae00ce25e311d5ed1 · sha256:977cb5b20bca45d0… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions

{"tags":["exploit"],"url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-3vv5-8xxp-4f55"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:82b9f1160b0e851bff02f543e90b4ab9896fca24dbb5516ae00ce25e311d5ed1 · sha256:977cb5b20bca45d0… · /containers/adp/0/references/0

{"name":"https://github.com/open-webui/open-webui/security/advisories/GHSA-3vv5-8xxp-4f55","tags":["x_refsource_CONFIRM"],"url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-3vv5-8xxp-4f55"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:82b9f1160b0e851bff02f543e90b4ab9896fca24dbb5516ae00ce25e311d5ed1 · sha256:977cb5b20bca45d0… · /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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