Open Webui

Blind Server-Side Request Forgery in Open WebUI 0.7.2 and below allows authenticated remote attackers to scan the local network and infer open ports via the image editing prompt functionality, which performs unrestricted GET requests to user-supplied URLs. The vulnerability enables port enumeration of internal network services without exposing response content, potentially leading to reconnaissance of locally accessible services. No public exploit code or active exploitation has been confirmed; patch status remains unresolved at time of publication.

Broken access control in Open WebUI allows authenticated users to access tool values across tenant boundaries, exposing sensitive information from other users' AI tool configurations. The vulnerability affects self-hosted Open WebUI instances prior to version 0.8.11. With CVSS 7.7 (High) and network-accessible attack vector requiring only low-privilege authentication, this represents a significant confidentiality breach in multi-tenant deployments. No public exploit identified at time of analysis, with EPSS data not yet available for this recent CVE.

Open WebUI versions prior to 0.8.6 allow authenticated users to read other users' private memories through an insufficiently restricted API endpoint at `/api/v1/retrieval/query/collection`, exposing sensitive user data stored within the self-hosted AI platform. The vulnerability requires valid authentication credentials and carries a CVSS score of 3.1 with low attack complexity, indicating limited real-world exploitability despite the information disclosure impact. No public exploit code or active exploitation has been confirmed at the time of analysis.

Open WebUI versions prior to 0.8.6 allow authenticated users to delete arbitrary files from knowledge bases they have write access to, due to missing validation that files actually belong to the target knowledge base. An attacker with legitimate write permissions to any knowledge base can exploit this to delete files from other knowledge bases by crafting requests with known file identifiers, resulting in data loss and service disruption. No public exploit code or active exploitation has been reported at time of analysis.

Open WebUI versions prior to 0.8.6 permit authenticated users to overwrite arbitrary file contents through an insecure batch processing endpoint, escalating read-only knowledge base access to write permissions without ownership validation. Attackers with low-level privileges can manipulate RAG (Retrieval-Augmented Generation) content served to language models, poisoning AI responses delivered to other users. CVSS 7.1 (High) reflects network-accessible exploitation with low complexity requiring only standard user authentication; no public exploit identified at time of analysis.

Open WebUI versions prior to 0.8.6 disclose the server's absolute DATA_DIR path to any authenticated non-admin user via unsanitized filename handling in the speech-to-text transcription endpoint, which returns FileNotFoundError messages in HTTP 400 responses. This information disclosure affects all default deployments and requires only user-level authentication to trigger. The vulnerability has been patched in version 0.8.6, and no public exploit code or active exploitation has been identified at time of analysis.

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. [CVSS 7.3 HIGH]

Stored XSS in Open WebUI prior to version 0.7.0 allows authenticated users to inject malicious HTML payloads into chat document metadata, which execute in the browser when citations are previewed or viewed in shared chats. Public exploit code exists for this vulnerability, and an attacker with login access can compromise any user who interacts with their weaponized chat documents. Upgrade to version 0.7.0 or later to remediate.

Open WebUI transmits authentication credentials in cleartext over the network, enabling adjacent attackers to intercept and obtain sensitive information without authentication. This information disclosure vulnerability can facilitate unauthorized access and further compromise of affected systems. No patch is currently available.

Remote code execution in Open WebUI through the load_tool_module_by_id function allows authenticated attackers to execute arbitrary Python code due to insufficient input validation on user-supplied strings. An attacker with valid credentials can leverage this vulnerability to achieve code execution with service account privileges. No patch is currently available, making this a critical risk for deployed Open WebUI instances.

Remote code execution in Open WebUI's install_frontmatter_requirements function allows authenticated attackers to execute arbitrary commands on the host system by bypassing input validation in system call parameters. The vulnerability affects AI/ML deployments using Open WebUI and requires valid authentication credentials to exploit. No patch is currently available.

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.6.37, a Stored XSS vulnerability was discovered in Open-WebUI's Notes PDF download functionality. An attacker can import a Markdown file containing malicious SVG tags into Notes, allowing them to execute arbitrary JavaScript code and steal session tokens when a victim downloads the note as PDF. This vulnerability can be exploited by any authenticated user, and unauthenticated external attackers can steal session tokens from users (both admin and regular users) by sharing specially crafted markdown files. This vulnerability is fixed in 0.6.37.

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.6.37, a Server-Side Request Forgery (SSRF) vulnerability in Open WebUI allows any authenticated user to force the server to make HTTP requests to arbitrary URLs. This can be exploited to access cloud metadata endpoints (AWS/GCP/Azure), scan internal networks, access internal services behind firewalls, and exfiltrate sensitive information. No special permissions beyond basic authentication are required. This vulnerability is fixed in 0.6.37.

open-webui v0.6.33 is vulnerable to Incorrect Access Control. The API /api/tasks/stop/ directly accesses and cancels tasks without verifying user ownership, enabling attackers (a normal user) to stop arbitrary LLM response tasks.

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Rated high severity (CVSS 7.3), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Rated high severity (CVSS 8.7), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.

open-webui v0.5.16 is vulnerable to SSRF in routers/ollama.py in function verify_connection. Rated low severity (CVSS 3.3), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.

In version v0.3.10 of open-webui/open-webui, the `api/v1/utils/pdf` endpoint lacks authentication mechanisms, allowing unauthenticated attackers to access the PDF generation service. Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

An XSS vulnerability exists in open-webui/open-webui versions <= 0.3.8, specifically in the function that constructs the HTML for tooltips. Rated critical severity (CVSS 9.0), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

A stored cross-site scripting (XSS) vulnerability exists in open-webui/open-webui version 0.3.8. Rated high severity (CVSS 8.4), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

In version 0.3.8 of open-webui, an endpoint for converting markdown to HTML is exposed without authentication. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

The `/openai/models` endpoint in open-webui/open-webui version 0.3.8 is vulnerable to Server-Side Request Forgery (SSRF). Rated high severity (CVSS 7.7), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

A vulnerability in open-webui/open-webui versions <= 0.3.8 allows remote code execution by non-admin users via Cross-Site Request Forgery (CSRF). Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

A vulnerability in open-webui/open-webui version 0.3.8 allows an attacker with a user-level account to perform a session fixation attack. Rated critical severity (CVSS 9.0), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

An improper access control vulnerability in open-webui/open-webui v0.3.8 allows an attacker to view admin details. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

In version v0.3.8 of open-webui/open-webui, improper access control vulnerabilities allow an attacker to view any prompts. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

A Stored Cross-Site Scripting (XSS) vulnerability exists in the chat file upload functionality of open-webui/open-webui version 0.3.8. Rated high severity (CVSS 8.9), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

An improper access control vulnerability in open-webui/open-webui v0.3.8 allows attackers to view and delete any files. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

In version v0.3.8 of open-webui/open-webui, there is an improper access control vulnerability. Rated medium severity (CVSS 4.9), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

In open-webui/open-webui version v0.3.8, there is an improper privilege management vulnerability. Rated medium severity (CVSS 6.7), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

A vulnerability in open-webui/open-webui v0.3.8 allows an unauthenticated attacker to sign up with excessively large text in the 'name' field, causing the Admin panel to become unresponsive. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

In version v0.3.8 of open-webui/open-webui, sensitive actions such as deleting and resetting are performed using the GET method. Rated medium severity (CVSS 6.9), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

In open-webui version 0.3.8, the endpoint `/models/upload` is vulnerable to arbitrary file write due to improper handling of user-supplied filenames. Rated high severity (CVSS 7.2), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

In version 0.3.8 of open-webui/open-webui, an arbitrary file write vulnerability exists in the download_model endpoint. Rated high severity (CVSS 7.2), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

In version 0.3.32 of open-webui/open-webui, the absence of authentication mechanisms allows any unauthenticated attacker to access the `api/v1/utils/code/format` endpoint. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

In version v0.3.32 of open-webui/open-webui, the application allows users to submit large payloads in the email and password fields during the sign-in process due to the lack of character length. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.