CVE-2026-44549 Open WebUI: Stored XSS in excel file preview

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.0, Excel file attachments are previewed in an unsafe way. A crafted XLSX file payload can be used to cause the sheetjs function sheettohtml to embed an XSS payload into the generated...

CVE-2026-44549

CVE-2026-44549 details (Open WebUI) : Open WebUI before 0.8.0 previews Excel attachments unsafely. The XLSX payload can trigger sheet_to_html to embed an XSS payload, which is then inserted into the DOM via @html without sanitization, enabling stored XSS. The issue is resolved in version 0.8.0. R...

CVE-2026-44549 Open WebUI: Stored XSS in excel file preview

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.0, Excel file attachments are previewed in an unsafe way. A crafted XLSX file payload can be used to cause the sheetjs function sheettohtml to embed an XSS payload into the generated...

CVE-2026-44549 Open WebUI: Stored XSS in excel file preview

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.0, Excel file attachments are previewed in an unsafe way. A crafted XLSX file payload can be used to cause the sheetjs function sheettohtml to embed an XSS payload into the generated...

CVE-2026-44549

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.0, Excel file attachments are previewed in an unsafe way. A crafted XLSX file payload can be used to cause the sheetjs function sheettohtml to embed an XSS payload into the generated...

EUVD-2026-30639

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.0, Excel file attachments are previewed in an unsafe way. A crafted XLSX file payload can be used to cause the sheetjs function sheettohtml to embed an XSS payload into the generated...

CVE-2026-45299

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.0, the profileimageurl field on the user profile update form accepted arbitrary data: URI values without MIME-type validation, resulting in a XSS vulnerability. This vulnerability is...

CVE-2026-45299 Open WebUI: Stored Cross-Site Scripting In Profile Picture

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.0, the profileimageurl field on the user profile update form accepted arbitrary data: URI values without MIME-type validation, resulting in a XSS vulnerability. This vulnerability is...

EUVD-2026-30661

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.0, the profileimageurl field on the user profile update form accepted arbitrary data: URI values without MIME-type validation, resulting in a XSS vulnerability. This vulnerability is...

CVE-2026-45299 Open WebUI: Stored Cross-Site Scripting In Profile Picture

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.0, the profileimageurl field on the user profile update form accepted arbitrary data: URI values without MIME-type validation, resulting in a XSS vulnerability. This vulnerability is...

CVE-2026-45299 Open WebUI: Stored Cross-Site Scripting In Profile Picture

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.0, the profileimageurl field on the user profile update form accepted arbitrary data: URI values without MIME-type validation, resulting in a XSS vulnerability. This vulnerability is...

CVE-2026-45299

Open WebUI had a stored XSS vulnerability in the profile_image_url field on the user profile update form prior to version 0.8.0, due to lack of MIME-type validation for data URIs. Two attack paths were demonstrated: (1) data:text/html;base64… opened in a new tab, and (2) data:image/svg+xml;base64...

CVE-2026-45665

Open WebUI contains a Stored XSS in the Banner component due to incorrect sanitization order (DOMPurify before marked.parse). The vulnerability allows a compromised administrator to store a payload in the global banner that is rendered for all users, including the Super Admin, enabling privilege ...

CVE-2026-45665 Open WebUI: Stored XSS in Banner Component via Improper Sanitization Order

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.0, a Stored Cross-Site Scripting XSS vulnerability exists in the Banner component due to an improper sanitization order specifically, DOMPurify is executed before the marked library. Th...

CVE-2026-45667

Open WebUI vulnerability CVE-2026-45667: Before version 0.8.0, the unauthenticated GET /api/v1/memories/ef could trigger EMBEDDING_FUNCTION(...) and cause embedding generation, potentially incurring costs if paid providers are used. The issue is rooted in exposing a cost/resource–intensive operat...

CVE-2026-45667

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.0, GET /api/v1/memories/ef is accessible without authentication and executes request.app.state.EMBEDDINGFUNCTION.... This allows any unauthenticated caller to trigger embedding generati...

openwebui-token-tracking (0.1.7) potentially affected by CVE-2026-45667 via open-webui (0.6.0)

open-webui PYPI version 0.6.0 is affected by a known vulnerability. The following packages have a transitive dependency on open-webui and may be impacted: - openwebui-token-tracking 0.1.7 Source cves: CVE-2026-45667 Source advisory: MEND:CVE-2026-45667...

CVE-2026-45667 Open WebUI: Unauthenticated endpoint can trigger embedding generation (cost/DoS)

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.0, GET /api/v1/memories/ef is accessible without authentication and executes request.app.state.EMBEDDINGFUNCTION.... This allows any unauthenticated caller to trigger embedding generati...

EUVD-2026-30665

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.0, GET /api/v1/memories/ef is accessible without authentication and executes request.app.state.EMBEDDINGFUNCTION.... This allows any unauthenticated caller to trigger embedding generati...

CVE-2026-44565

CVE-2026-44565 affects Open WebUI prior to 0.6.10. The upload API derives the target path from the original HTTP upload filename without validation, enabling dot-segment path traversal and arbitrary file writes to locations the web server user can access. This is fixed in 0.6.10. Mitigation guida...