CVE-2026-45318

MediumCVSS 5.4/10Last modified Jun 17, 2026

Description

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.3, his advisory tracks a regression of the original Excel-preview XSS (CVE-2026-44549). The same root cause — XLSX.utils.sheet_to_html() output rendered via {@html excelHtml} without DOMPurify — was reintroduced sometime after v0.8.0 and is exploitable again This vulnerability is fixed in 0.9.3.

Metrics

CVSS 3.1 5.4/10CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-79

Affected software

No affected versions have been published.

Timeline

Published: May 15, 2026
Last modified: Jun 17, 2026
NVD status: Analyzed

Related CVEs from 2026

CVE-2026-45327.5A security vulnerability has been detected in code-projects Simple Food Ordering System up to 1.0. Affected by this vulnerability is an unkn CVE-2026-453208.7DataEase is an open source data visualization and analysis tool. Prior to 2.10.23, DataEase dashboard SQL variables such as ${deptId} are pr CVE-2026-453219.6On 2026-05-11, between approximately 19:20 and 19:26 UTC, 84 malicious versions across 42 @tanstack/* packages were published to the npm reg CVE-2026-453227.8Microsoft UFO open-source framework for intelligent automation across devices and platforms. Microsoft UFO tagged releases up to and includi CVE-2026-453239.6MeshCore Card provides MeshCore Lovelace card for Home Assistant. Prior to 0.3.3, Meshcore node names are rendered without HTML escaping in CVE-2026-453243.3Rizin is a UNIX-like reverse engineering framework and command-line toolset. There is a double free in librz/core/cmd/cmd_search.c:byte_patt CVE-2026-453258.2Gestor de Oferta is a web application for managing mobility service offerings. Prior to 20260509.0340.15, @tmlmobilidade/utils has a prototy CVE-2026-453278.2TinyIce is a streaming server for audio and video. In versions 0.8.95 through 2.4.1, missing authentication on WebRTC ingest endpoint allows CVE-2026-453288.8ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In versions 5.5.4 and 6.0, the esp_tee component exposes secure-ser CVE-2026-453296.5ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In versions 5.5.4 and 6.0, several ESP-TEE secure-service wrappers CVE-2026-45338.8A vulnerability was detected in code-projects Simple Food Ordering System 1.0. Affected by this issue is some unknown functionality of the f CVE-2026-453304.9Decidim is a participatory democracy framework. Prior to 0.30.9, from 0.31.0 before 0.31.5, and in 0.32.0.rc1 before 0.32.0.rc2, the identit