https://cve.radiocsirt.org Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Fri, 23 Oct 2026 23:37:13 +0000 https://cve.radiocsirt.org/vuln/cve-2026-26193 <p><strong>Affected:</strong> open-webui</p> <p>Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.6.44, aanually modifying chat history allows setting the `embeds` property on a response message, the content of which is loaded into an iFrame with a sandbox that has `allow-scripts` and `allow-same-origin` set, ignoring the &#34;iframe Sandbox Allow Same Origin&#34; configuration. This enables stored XSS on the affected chat. This also triggers when the chat is in the shared format. The result is a shareable link containing the payload that can be distributed to any other users on the instance. Version 0.6.44 fixes the issue.</p> <p><strong>Affected:</strong> open-webui</p> <p>Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.6.44, aanually modifying chat history allows setting the `embeds` property on a response message, the content of which is loaded into an iFrame with a sandbox that has `allow-scripts` and `allow-same-origin` set, ignoring the &#34;iframe Sandbox Allow Same Origin&#34; configuration. This enables stored XSS on the affected chat. This also triggers when the chat is in the shared format. The result is a shareable link containing the payload that can be distributed to any other users on the instance. Version 0.6.44 fixes the issue.</p> https://cve.radiocsirt.org/vuln/cve-2026-26193 https://cve.radiocsirt.org/vuln/pysec-2026-2760 <p><strong>Affected:</strong> PyPI: open-webui</p> <p>### Summary Manually modifying chat history allows setting the `embeds` property on a response message, the content of which is loaded into an iFrame with a sandbox that has `allow-scripts` and `allow-same-origin` set, ignoring the &#34;iframe Sandbox Allow Same Origin&#34; configuration. This enables stored XSS on the affected chat. This also triggers when the chat is in the shared format. The result is a shareable link containing the payload that can be distributed to any other users on the instance.</p> <p>### Details The flaw stems from how iFrames are constructed here: https://github.com/open-webui/open-webui/blob/6f1486ffd0cb288d0e21f41845361924e0d742b3/src/lib/components/chat/Messages/ResponseMessage.svelte#L689-L703</p> <p>`messages.embeds` is a user controlled property and so can be arbitrarily set by the user to a payload of their choosing. Since `allowScripts` and `allowSameOrigin` are harcoded as true here the sandboxing offers essentially no protection.</p> <p>### PoC Create an arbitrary chat: &lt;img width=&#34;2468&#34; height=&#34;1426&#34; alt=&#34;image&#34; src=&#34;https://github.com/user-attachments/assets/41e32f5c-3fa7-4208-a71f-85556eec6309&#34; /&gt; Edit the model response: &lt;img width=&#34;632&#34; height=&#34;192&#34; alt=&#34;image&#34; src=&#34;https://github.com/user-attachments/assets/b1e79303-360f-46e3-8d6d-3309c3ec30af&#34; /&gt; &lt;img width=&#34;2150&#34; height=&#34;434&#34; alt=&#34;image&#34; src=&#34;https://github.com/user-attachments/assets/78f19d7f-10dc-4e91-83cc-2d4811e58496&#34; /&gt; Before saving, configure the browser to use an HTTP proxy tool (Burp/Caido/ZAP) an…</p> <p><strong>Affected:</strong> PyPI: open-webui</p> <p>### Summary Manually modifying chat history allows setting the `embeds` property on a response message, the content of which is loaded into an iFrame with a sandbox that has `allow-scripts` and `allow-same-origin` set, ignoring the &#34;iframe Sandbox Allow Same Origin&#34; configuration. This enables stored XSS on the affected chat. This also triggers when the chat is in the shared format. The result is a shareable link containing the payload that can be distributed to any other users on the instance.</p> <p>### Details The flaw stems from how iFrames are constructed here: https://github.com/open-webui/open-webui/blob/6f1486ffd0cb288d0e21f41845361924e0d742b3/src/lib/components/chat/Messages/ResponseMessage.svelte#L689-L703</p> <p>`messages.embeds` is a user controlled property and so can be arbitrarily set by the user to a payload of their choosing. Since `allowScripts` and `allowSameOrigin` are harcoded as true here the sandboxing offers essentially no protection.</p> <p>### PoC Create an arbitrary chat: &lt;img width=&#34;2468&#34; height=&#34;1426&#34; alt=&#34;image&#34; src=&#34;https://github.com/user-attachments/assets/41e32f5c-3fa7-4208-a71f-85556eec6309&#34; /&gt; Edit the model response: &lt;img width=&#34;632&#34; height=&#34;192&#34; alt=&#34;image&#34; src=&#34;https://github.com/user-attachments/assets/b1e79303-360f-46e3-8d6d-3309c3ec30af&#34; /&gt; &lt;img width=&#34;2150&#34; height=&#34;434&#34; alt=&#34;image&#34; src=&#34;https://github.com/user-attachments/assets/78f19d7f-10dc-4e91-83cc-2d4811e58496&#34; /&gt; Before saving, configure the browser to use an HTTP proxy tool (Burp/Caido/ZAP) an…</p> https://cve.radiocsirt.org/vuln/pysec-2026-2760