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CVE-2025-64495

8.7 · HIGH

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline.

Published Nov 8, 2025CWE-79EPSS 0.46%

Overview

CVE-2025-64495 is a high-severity vulnerability. It was published on November 8, 2025 and has a CVSS 3.1 base score of 8.7 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.7, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. In versions 0.6.34 and below, the functionality that inserts custom prompts into the chat window is vulnerable to DOM XSS when 'Insert Prompt as Rich Text' is enabled, since the prompt body is assigned to the DOM sink .innerHtml without sanitisation. Any user with permissions to create prompts can abuse this to plant a payload that could be triggered by other users if they run the corresponding / command to insert the prompt. This issue is fixed in version 0.6.35.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/open-webui/open-webui/blob/7a83e7dfa367d19f762ec17cac5e4a94ea2bd97d/src/lib/components/common/RichTextInput.svelte#L348GitHubgithub.com/open-webui/open-webui/commit/eb9c4c0e358c274aea35f21c2856c0a20051e5f1GitHubgithub.com/open-webui/open-webui/security/advisories/GHSA-w7xj-8fx7-wfch

How CyberStrike helps

Frequently asked questions

What is CVE-2025-64495?

CVE-2025-64495 is a high-severity vulnerability. It was published on November 8, 2025 and has a CVSS 3.1 base score of 8.7 (HIGH).

How severe is CVE-2025-64495?

This vulnerability has a CVSS 3.1 base score of 8.7, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2025-64495?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-64495?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-64495 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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