CVE-2026-44729 Twenty: Stored Cross-Site Scripting via Unsanitized File Serving (Missing Content-Type/Content-Disposition Headers)

Twenty is an open source CRM. In 1.18.0 and earlier, the file serving endpoints in Twenty CRM at /files/ and /file/:fileFolder/:id serve uploaded files using fileStream.piperes without setting any Content-Type, Content-Disposition, or X-Content-Type-Options response headers. This allows an...

CVE-2026-44729 Twenty: Stored Cross-Site Scripting via Unsanitized File Serving (Missing Content-Type/Content-Disposition Headers)

Twenty is an open source CRM. In 1.18.0 and earlier, the file serving endpoints in Twenty CRM at /files/ and /file/:fileFolder/:id serve uploaded files using fileStream.piperes without setting any Content-Type, Content-Disposition, or X-Content-Type-Options response headers. This allows an...

PT-2026-42720

Mothra would respect a default value given by a website for HTML file upload forms. An attacker could craft a website with a malicious default file path, and then conceal this form element...

CVE-2026-45315

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.3, the audio transcription upload endpoint takes the file extension from the user-supplied filename and saves the file under CACHEDIR/audio/transcriptions/.. The /cache/path route serve...

EUVD-2026-30656

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.3, the audio transcription upload endpoint takes the file extension from the user-supplied filename and saves the file under CACHEDIR/audio/transcriptions/.. The /cache/path route serve...

CVE-2026-34429

Vvveb prior to 1.0.8.1 contains a stored cross-site scripting vulnerability that allows authenticated users with media upload and rename permissions to execute arbitrary JavaScript by bypassing MIME type validation and renaming uploaded files to executable extensions. Attackers can prepend a GIF8...

CVE-2026-41467

ProjeQtor versions 7.0 through 12.4.3 contain a stored cross-site scripting vulnerability in the file upload functionality where the checkValidFileName function fails to restrict HTML and HTM file uploads. Authenticated attackers can upload HTML files containing arbitrary JavaScript through the...

CVE-2026-40487

Postiz is an AI social media scheduling tool. Prior to version 2.21.6, a file upload validation bypass allows any authenticated user to upload arbitrary HTML, SVG, or other executable file types to the server by spoofing the Content-Type header. The uploaded files are then served by nginx with a...

CVE-2026-34161

Chamilo LMS is an open-source learning management system. In versions prior to 2.0.0-RC.3, a Stored Cross-Site Scripting XSS vulnerability exists in the social post attachment upload functionality, where an authenticated user can upload a malicious HTML file containing JavaScript via the...

Arbitrary File Upload

Overview Affected versions of this package are vulnerable to Arbitrary File Upload via the file upload. An administrator can execute arbitrary JavaScript in the context of the application by uploading a crafted SVG or HTML file containing malicious scripts, which are then served to users without...

CVE-2026-34071

CVE-2026-34071 affects Stirling-PDF. In version 2.7.3, the /api/v1/convert/eml/pdf endpoint with downloadHtml=true returns unsanitized HTML from the email body (Content-Type: text/html). An attacker sending a malicious email to a Stirling-PDF user can achieve JavaScript execution when the user ex...

EUVD-2026-14893

iCMS v8.0.0 contains a Cross-Site Scripting XSS vulnerability in the User Management component, specifically within the index.html file. This allows remote attackers to execute arbitrary web script or HTML via the regip or loginip parameters...

Cisco Secure Endpoint ClamAV CSS Parsing DoS (cisco-sa-clamav-css-Fn4QSZ)

According to its self-reported version, Cisco Secure Endpoint is affected by a denial of service DoS vulnerability. - A vulnerability in the HTML Cascading Style Sheets CSS module of ClamAV could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected...

EUVD-2026-11273

Parse Server vulnerable to stored XSS via file upload of HTML-renderable file types...

PT-2026-24824

Copyparty is a portable file server. Prior to 1.20.12, if an attacker has been given both read- and write-permissions to the server, they can upload a malicious file with the filename .prologue.html and then craft a link to potentially execute arbitrary JavaScript in the victim's context. Note th...

DEBIAN-CVE-2026-20031

A vulnerability in the HTML Cascading Style Sheets CSS module of ClamAV could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. This vulnerability is due to improper error handling when splitting UTF-8 strings. An attacker could exploit th...

CVE-2026-20031

A vulnerability in the HTML Cascading Style Sheets CSS module of ClamAV could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. This vulnerability is due to improper error handling when splitting UTF-8 strings. An attacker could exploit th...

CVE-2026-20031

A vulnerability in the HTML Cascading Style Sheets CSS module of ClamAV could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. This vulnerability is due to improper error handling when splitting UTF-8 strings. An attacker could exploit th...

Cross-site Scripting (XSS)

Overview Affected versions of this package are vulnerable to Cross-site Scripting XSS in the attachment upload process. An attacker can execute arbitrary JavaScript in the context of another user's browser session by uploading a crafted HTML or SVG file containing malicious scripts. This can lead...

CVE-2026-28274

Initiative is a self-hosted project management platform. Versions of the application prior to 0.32.4 are vulnerable to Stored Cross-Site Scripting XSS in the document upload functionality. Any user with upload permissions within the "Initiatives" section can upload a malicious .html or .htm file ...