CVE-2026-54011

Katalog CVE

CVSS 5.4 · Medium EPSS 0,34%

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 a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6,Open WebUI renders Mermaid blocks from Markdown files in the file preview panel and inserts the generated SVG into the DOM using innerHTML. Because Mermaid is configured with securityLevel: 'loose', attacker-controlled Mermaid content can be rendered unsafely in this flow. A working payload was validated through the Markdown preview path, resulting in JavaScript execution in the victim’s browser under the application origin. This vulnerability is fixed in 0.9.6.

Rincian

Terbit di NVD

23 Juni 2026

Terakhir diubah

25 Juni 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')

EPSS (30 hari)

0,34% peluang dieksploitasi; lebih tinggi dari 25,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/open-webui/open-webui/security/advisories/GHSA-v8qj-hxv7-mgvv exploit · mitigasi · advisory vendor