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Open WebUI

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high advisory

SSRF Vulnerability in Open WebUI via NAT64-encoded URLs

Authenticated users can bypass SSRF protection in Open WebUI by wrapping internal IPv4 addresses in NAT64 IPv6 transition prefixes, allowing unauthorized access to cloud metadata and internal network services.

PoC Open WebUI +5 ssrf vulnerability cloud-security web-application cve-2026-70479 web-vulnerability authorization-bypass cve-2026-70494 +2
2r 6t 1c updated
critical threat

CVE-2026-63030: Critical Remote Code Execution Vulnerability in WordPress Core

CVE-2026-63030 is a critical unauthenticated remote code execution vulnerability affecting WordPress Core versions 6.9.0 through 6.9.4 and 7.0.0 through 7.0.1, allowing an unauthenticated attacker to execute arbitrary code via the WordPress REST API batch endpoint, potentially leading to complete website compromise.

exploited PoC WordPress Core 6.9.0 +51 wordpress rce web-vulnerability cve
2t 15c 8i updated
high advisory

CVE-2026-56400 open-webui Cross-Origin Resource Sharing Misconfiguration Leads to RCE

A cross-origin resource sharing (CORS) misconfiguration in open-webui versions prior to 0.3.14 allows remote attackers to achieve arbitrary code execution by crafting malicious cross-site requests that an authenticated administrator user visits.

open-webui cve vulnerability web-exploitation cors rce
3t 1c
critical advisory

Open WebUI Missing Authorization on Tool Update Endpoint Allows Privilege Escalation to Code Execution

Open WebUI is vulnerable to privilege escalation and code execution because a missing authorization check on the tool update endpoint allows a user with write access to a tool to replace the tool's server-side Python content and trigger execution, bypassing the intended `workspace.tools` security boundary.

Open WebUI privilege-escalation code-execution authorization
2r 2t
high advisory

Open WebUI IDOR Vulnerability in Retrieval API Allows Unauthorized Access and Modification of Knowledge Bases

Open WebUI is vulnerable to an IDOR vulnerability in its Retrieval API that bypasses knowledge base access controls, allowing any authenticated user who knows a private knowledge base UUID to read, inject content into, or overwrite another user's knowledge base.

Open WebUI idor authorization_bypass data_manipulation
2r 1t
high advisory

Open WebUI CORS Misconfiguration and Session Validation Vulnerability Leads to RCE

Open WebUI version v0.3.10 has a CORS misconfiguration and session validation issue that can lead to remote code execution due to a one-click attack against admin users.

open-webui cors rce session-management
2r 1t
high advisory

Open WebUI Arbitrary File Write/Delete via Path Traversal

Open WebUI is vulnerable to path traversal (CVE-2026-44565), allowing attackers to upload files to arbitrary locations on the web server's filesystem and subsequently delete them due to insufficient filename sanitization in the `/ollama/models/upload` API endpoint.

Open WebUI path-traversal file-deletion web-application
2r 1t
high advisory

Open WebUI Authenticated File Overwrite Vulnerability (CVE-2026-28788)

Open WebUI before version 0.8.6 allows any authenticated user to overwrite arbitrary file content via the `POST /api/v1/retrieval/process/files/batch` endpoint, leading to privilege escalation and potential manipulation of LLM responses.

Open WebUI cve-2026-28788 open-webui file-overwrite privilege-escalation
2r 1t