CVE•Published 2026-05-15•Modified 2026-05-18•0 articles on news•6 live references•NVD data

CVE-2026-45314Openwebui · Open_webui

Vulnerability data via NVD (ingested)

CVSS v3.1

6.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS percentile

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Weaknesses (CWE)

CWE-87Improper Neutralization of Alternate XSS Syntax

Description

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 fixed in 0.9.3.

Timeline

Published 2026-05-15

Modified 2026-05-18

External references

NVD MITRE Exploit-DB GitHub PoC trickest/cve VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-45314

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Openwebui Open Webui"

All exposed Openwebui Open Webui instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Open Webui"

HTTP body or banner mentions "Open Webui" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-45314