https://cve.radiocsirt.org Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Tue, 20 Oct 2026 16:38:21 +0000 https://cve.radiocsirt.org/vuln/bdu:2026-07140 bdu:2026-07140 https://cve.radiocsirt.org/vuln/bdu:2026-07140 https://cve.radiocsirt.org/vuln/euvd-2026-319338 EUVD-2026-319338 https://cve.radiocsirt.org/vuln/euvd-2026-319338 https://cve.radiocsirt.org/vuln/fkie_cve-2026-45665 <p>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). This vulnerability allows a compromised or malicious administrator to plant a malicious payload in the global banner. Crucially, this vector enables Privilege Escalation, as the malicious banner is rendered for all users, including the Super Admin (Primary Admin). Consequently, the payload successfully bypasses the existing security mechanism. An attacker can leverage this to steal the Super Admin&#39;s session token This vulnerability is fixed in 0.8.0.</p> <p>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). This vulnerability allows a compromised or malicious administrator to plant a malicious payload in the global banner. Crucially, this vector enables Privilege Escalation, as the malicious banner is rendered for all users, including the Super Admin (Primary Admin). Consequently, the payload successfully bypasses the existing security mechanism. An attacker can leverage this to steal the Super Admin&#39;s session token This vulnerability is fixed in 0.8.0.</p> https://cve.radiocsirt.org/vuln/fkie_cve-2026-45665 https://cve.radiocsirt.org/vuln/ghsa-cqp4-qqvg-3787 <p><strong>Affected:</strong> npm: open-webui</p> <p>### Summary 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).</p> <p>This vulnerability allows a compromised or malicious administrator to plant a malicious payload in the global banner. Crucially, this vector enables Privilege Escalation, as the malicious banner is rendered for all users, including the Super Admin (Primary Admin).</p> <p>Consequently, the payload successfully bypasses the existing security mechanism. An attacker can leverage this to steal the Super Admin&#39;s session token</p> <p>### Details Root Cause: The code attempts to sanitize the input using DOMPurify.sanitize() before parsing it with marked.parse().</p> <p>DOMPurify cleans the raw input. Since [Link](javascript:alert(javascript:alert(localStorage.token))) is valid text (not HTML), it passes through DOMPurify unchanged. marked handles the text and converts it into a clickable HTML link: &lt;a href=&#34;javascript:alert(javascript:alert(localStorage.token))&#34;&gt;Link&lt;/a&gt;. This resulting unsafe HTML is rendered directly via {@html ...} without further checks.</p> <p>`src/lib/components/common/Banner.svelte` (Line 103) ```svelte {@html marked.parse(DOMPurify.sanitize((banner?.content ?? &#39;&#39;).replace(/\n/g, &#39;&lt;br&gt;&#39;)))} ``` ### POC 1. **Attacker Action:** Log in as a compromised Admin account and navigate to **Settings &gt; Interface &gt; UI &gt; Banners**. 2. **Injection:** Add a new banner and enter the following payload in t…</p> <p><strong>Affected:</strong> npm: open-webui</p> <p>### Summary 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).</p> <p>This vulnerability allows a compromised or malicious administrator to plant a malicious payload in the global banner. Crucially, this vector enables Privilege Escalation, as the malicious banner is rendered for all users, including the Super Admin (Primary Admin).</p> <p>Consequently, the payload successfully bypasses the existing security mechanism. An attacker can leverage this to steal the Super Admin&#39;s session token</p> <p>### Details Root Cause: The code attempts to sanitize the input using DOMPurify.sanitize() before parsing it with marked.parse().</p> <p>DOMPurify cleans the raw input. Since [Link](javascript:alert(javascript:alert(localStorage.token))) is valid text (not HTML), it passes through DOMPurify unchanged. marked handles the text and converts it into a clickable HTML link: &lt;a href=&#34;javascript:alert(javascript:alert(localStorage.token))&#34;&gt;Link&lt;/a&gt;. This resulting unsafe HTML is rendered directly via {@html ...} without further checks.</p> <p>`src/lib/components/common/Banner.svelte` (Line 103) ```svelte {@html marked.parse(DOMPurify.sanitize((banner?.content ?? &#39;&#39;).replace(/\n/g, &#39;&lt;br&gt;&#39;)))} ``` ### POC 1. **Attacker Action:** Log in as a compromised Admin account and navigate to **Settings &gt; Interface &gt; UI &gt; Banners**. 2. **Injection:** Add a new banner and enter the following payload in t…</p> https://cve.radiocsirt.org/vuln/ghsa-cqp4-qqvg-3787