CVE Explorer
CVE-2026-26192
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.7.0, aanually modifying chat history allows setting the `html` property within document metadata. This causes the frontend to enter a code path that treats document contents as HTML, and render them in an iFrame when the citation is previewed. This allows stored XSS via a weaponized document payload in a chat. The payload also executes when the citation is viewed on a shared chat
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"open-webui","vendor":"open-webui","versions":[{"status":"affected","version":"< 0.7.0"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:626014c70a51e6bf2d78d18a5f68efc9ec66548e4e385a0fa3577c347ea10571 · sha256:b3972c57ccae2c83… · /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_v5cvssurn:baitaphish:normalized-source-record:v2:626014c70a51e6bf2d78d18a5f68efc9ec66548e4e385a0fa3577c347ea10571 · sha256:b3972c57ccae2c83… · /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_v5cweurn:baitaphish:normalized-source-record:v2:626014c70a51e6bf2d78d18a5f68efc9ec66548e4e385a0fa3577c347ea10571 · sha256:b3972c57ccae2c83… · /containers/cna/problemTypes/0/descriptions/0
Source references
2 source assertions{"name":"https://github.com/open-webui/open-webui/blob/6f1486ffd0cb288d0e21f41845361924e0d742b3/src/lib/components/chat/Messages/Citations/CitationModal.svelte#L163-L170","tags":["x_refsource_MISC"],"url":"https://github.com/open-webui/open-webui/blob/6f1486ffd0cb288d0e21f41845361924e0d742b3/src/lib/components/chat/Messages/Citations/CitationModal.svelte#L163-L170"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:626014c70a51e6bf2d78d18a5f68efc9ec66548e4e385a0fa3577c347ea10571 · sha256:b3972c57ccae2c83… · /containers/cna/references/1
{"name":"https://github.com/open-webui/open-webui/security/advisories/GHSA-xc8p-9rr6-97r2","tags":["x_refsource_CONFIRM"],"url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-xc8p-9rr6-97r2"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:626014c70a51e6bf2d78d18a5f68efc9ec66548e4e385a0fa3577c347ea10571 · sha256:b3972c57ccae2c83… · /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.