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CVE-2026-45314

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.3, the channel webhook create/update flow accepts arbitrary profile_image_url values, including data:image/svg+xml;base64,... payloads. The profile image endpoint then decodes and serves this SVG as image/svg+xml without sanitization, allowing attacker-controlled script handlers (for example onload) to execute when the profile-image URL is opened in the browser. This vulnerability is f
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:a46a90d45f29cbfdcc77ce4af9b7ae336000f2ae619cf7b176d2681a66fae32a
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":"< 0.9.3"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1e2daee53b3d5c52fa23efc1c0517236ec6904893f206e2e64b82fda609b3d85 · sha256:ac743c6dd90a01e9… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":7.4,"baseSeverity":"HIGH","privilegesRequired":"LOW","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:1e2daee53b3d5c52fa23efc1c0517236ec6904893f206e2e64b82fda609b3d85 · sha256:ac743c6dd90a01e9… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-87","description":"CWE-87: Improper Neutralization of Alternate XSS Syntax","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:1e2daee53b3d5c52fa23efc1c0517236ec6904893f206e2e64b82fda609b3d85 · sha256:ac743c6dd90a01e9… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/open-webui/open-webui/security/advisories/GHSA-3856-3vxq-m6fc","tags":["x_refsource_CONFIRM"],"url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-3856-3vxq-m6fc"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1e2daee53b3d5c52fa23efc1c0517236ec6904893f206e2e64b82fda609b3d85 · sha256:ac743c6dd90a01e9… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-3856-3vxq-m6fc"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1e2daee53b3d5c52fa23efc1c0517236ec6904893f206e2e64b82fda609b3d85 · sha256:ac743c6dd90a01e9… · /containers/adp/0/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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