CVE-2026-45318
medium
CVSS v3
5.4
CVSS v2
—
VIR risk
5.4
Description
Open WebUI has stored XSS via unsanitized Office/Excel/DOCX file preview rendering ({@html} without DOMPurify)
Predictions
Exploit likelihood
64%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: security-advisories@github.com — https://github.com/open-webui/open-webui/security/advisories/GHSA-hcwp-82g6-8wxc
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| PyPI | open-webui | <0.9.3 | 0.9.3 |
| PIP | open-webui | <= 0.9.2 | 0.9.3 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| openwebui | open_webui | {"endExcluding":"0.9.3"} | 0.9.3 |
References
- https://github.com/open-webui/open-webui/security/advisories/GHSA-hcwp-82g6-8wxc
- https://github.com/open-webui/open-webui/security/advisories/GHSA-jwf8-pv5p-vhmc
- https://nvd.nist.gov/vuln/detail/CVE-2026-45318
- https://github.com/open-webui/open-webui
- https://github.com/open-webui/open-webui/releases/tag/v0.9.3
- https://github.com/advisories/GHSA-hcwp-82g6-8wxc
CWEs
CWE-79
Verify integrity in audit chain (admin only). AS-IS.