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CVE-2026-54013

HIGH
7.6
CVSS 3.1
Description
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, Open WebUI patched SVG XSS in user profile images and webhook profile images but forgot to apply the same fix to model profile images. The ModelMeta class has no validate_profile_image_url field validator, and the model image serving endpoint has no MIME allowlist or nosniff header. Any authenticated user with workspace.models permission (enabled by default) can store a data:image/svg+xml;base64,... payload in a model's profile image and achieve full account takeover of anyone who navigates to the image URL. This vulnerability is fixed in 0.9.6.

Metadata

CVE ID
CVE-2026-54013
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-06-11 16:34 UTC
Published
2026-06-23 16:46 UTC
Last updated
2026-06-23 16:46 UTC
Primary CWE
CWE-79
CWE-79: Improper Neutralization of Input During Web Page Gen…
Vendor / Product
open-webui / open-webui
Sources
cve.org  ·  NVD

Severity & Metrics

7.6 HIGH CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
Affected products (1)
VendorProductPlatformVersions
open-webui open-webui — < 0.9.6
Weakness (CWE)
CWESourceDescription
CWE-116 cna CWE-116: Improper Encoding or Escaping of Output
CWE-693 cna CWE-693: Protection Mechanism Failure
CWE-79 cna CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSS scores (1)
ScoreSeverityVersionSourceVector
7.6 HIGH 3.1 cna CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
References (1)
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