CVE-2026-70486

Katalog CVE

CVSS 5.4 · Medium EPSS 0,38%

Kerentanan Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') pada openwebui open webui. Skor CVSS 3.1 5.4 (Medium) menurut NVD.

Deskripsi (NVD)

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.0 until 0.11.0, the terminal file-preview serveUrl iframe branch always granted allow-same-origin together with allow-scripts for HTML files served from the application origin. Any authenticated user with access to a configured terminal server could cause script in a previewed file to run in the Open WebUI origin, read the victim's session token from localStorage, and take over the account, with possible server-side code execution if the victim was an admin or held workspace.functions. This issue is fixed in 0.11.0.

Rincian

Terbit di NVD

4 Agustus 2026

Terakhir diubah

18 September 2026

Status NVD

Analyzed

CVSS 3.1

5.4 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-1021: Improper Restriction of Rendered UI Layers or Frames

EPSS (30 hari)

0,38% peluang dieksploitasi; lebih tinggi dari 30,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/open-webui/open-webui/pull/26907 patch · advisory vendor
• https://github.com/open-webui/open-webui/security/advisories/GHSA-3xpf-xq7r-v8c5 exploit · patch · advisory vendor
• https://github.com/open-webui/open-webui/commit/65a5fad7b97db99d490d81f4e0860282c3a4543c patch
• https://github.com/open-webui/open-webui/releases/tag/v0.11.0 release notes