GHSA-HCWP-82G6-8WXC Open WebUI has stored XSS via unsanitized Office/Excel/DOCX file preview rendering ({@html} without DOMPurify)

Related advisory This advisory tracks a regression of the original Excel-preview XSS that was publicly disclosed and patched under GHSA-jwf8-pv5p-vhmc patched in v0.8.0. The same root cause — XLSX.utils.sheettohtml output rendered via @html excelHtml without DOMPurify — was reintroduced sometime...

CVE-2025-64011

Nextcloud Server 30.0.0 is vulnerable to an Insecure Direct Object Reference IDOR in the /core/preview endpoint. Any authenticated user can access previews of arbitrary files belonging to other users by manipulating the fileId parameter. This allows unauthorized disclosure of sensitive data, such...

EUVD-2025-203106

Nextcloud Server 30.0.0 is vulnerable to an Insecure Direct Object Reference IDOR in the /core/preview endpoint. Any authenticated user can access previews of arbitrary files belonging to other users by manipulating the fileId parameter. This allows unauthorized disclosure of sensitive data, such...

CVE-2025-64011

Nextcloud Server version 30.0.0 is vulnerable to an Insecure Direct Object Reference (IDOR) in the /core/preview endpoint. This flaw allows any authenticated user to access previews of arbitrary files belonging to other users by manipulating the fileId parameter. The vulnerability stems from an a...

CVE-2025-64011

Nextcloud Server 30.0.0 is vulnerable to an Insecure Direct Object Reference IDOR in the /core/preview endpoint. Any authenticated user can access previews of arbitrary files belonging to other users by manipulating the fileId parameter. This allows unauthorized disclosure of sensitive data, such...

CVE-2025-64011

Nextcloud Server 30.0.0 is vulnerable to an Insecure Direct Object Reference IDOR in the /core/preview endpoint. Any authenticated user can access previews of arbitrary files belonging to other users by manipulating the fileId parameter. This allows unauthorized disclosure of sensitive data, such...

EUVD-2018-8303

Malware in sbrugna...

CVE-2025-53176

Stack overflow risk when vector images are parsed during file preview Impact: Successful exploitation of this vulnerability may affect the file preview function...

Huawei HarmonyOS security vulnerabilities

Huawei HarmonyOS is an operating system from Huawei China. It provides a full-scenario distributed operating system based on a microkernel. A security vulnerability exists in Huawei HarmonyOS versions 5.0.1 and 5.1.0, which stems from a stack overflow risk when parsing vector images, and can be...

Huawei HarmonyOS security vulnerabilities

Huawei HarmonyOS is an operating system from Huawei China. It provides a full-scenario distributed operating system based on a microkernel. A security vulnerability exists in Huawei HarmonyOS versions 5.0.1 and 5.1.0, which stems from a stack overflow risk when parsing vector images, and can be...

Huawei HarmonyOS security vulnerabilities

Huawei HarmonyOS is an operating system from Huawei China. It provides a full-scenario distributed operating system based on a microkernel. A security vulnerability exists in Huawei HarmonyOS versions 5.0.1 and 5.1.0, which stems from a stack overflow risk when parsing vector images, and can be...

August 6, 2019, update for Excel 2016 (KB4475550)

August 6, 2019, update for Excel 2016 KB4475550 Applies To Excel 2016 This article describes update 4475550 for Microsoft Excel 2016 that was released on August 6, 2019. Be aware that the update in the Microsoft Download Center applies to the Microsoft Installer .msi-based edition of Office 2016...

OESA-2024-1632 nautilus security update

It's easier to manage your files for the GNOME desktop. Ability to browse directories on local and remote systems. preview folders and launch related programs. It is also handle icons on the GNOME desktop. Security Fixes: GNOME Nautilus 42.2 allows a NULL pointer dereference and getbasename...

PT-2022-20005

Name of the Vulnerable Software and Affected Versions Jirafeau versions prior to 4.4.0 Description The file preview functionality in Jirafeau, which is enabled by default, could be exploited for cross-site scripting. An attacker could upload image/svg+xml files containing JavaScript. When someone...

Default credentials

A missing check in Nextcloud Server prior to 14.0.0 could give unauthorized access to the previews of single file password protected shares...

CVE-2018-16467

A missing check in Nextcloud Server prior to 14.0.0 could give unauthorized access to the previews of single file password protected shares...

CVE-2018-16467: Exposure of Sensitive Information to an Unauthorized Actor

A missing check in Nextcloud Server prior to 14.0.0 could give unauthorized access to the previews of single file password protected shares...

CVE-2018-3762: Improper Access Control

Nextcloud Server before 12.0.8 and 13.0.3 suffers from improper checks of dropped permissions for incoming shares allowing a user to still request previews for files it should not have access to...