https://cve.radiocsirt.org Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Sat, 10 Oct 2026 05:46:21 +0000 https://cve.radiocsirt.org/vuln/euvd-2026-276758 EUVD-2026-276758 https://cve.radiocsirt.org/vuln/euvd-2026-276758 https://cve.radiocsirt.org/vuln/fkie_cve-2026-32940 <p>SiYuan is a personal knowledge management system. In versions 3.6.0 and below, SanitizeSVG has an incomplete blocklist — it blocks data:text/html and data:image/svg+xml in href attributes but misses data:text/xml and data:application/xml, both of which can render SVG with JavaScript execution. The unauthenticated /api/icon/getDynamicIcon endpoint serves user-controlled input (via the content parameter) directly into SVG markup using fmt.Sprintf with no escaping, served as Content-Type: image/svg+xml. This creates a click-through XSS: a victim navigates to a crafted URL, sees an SVG with an injected link, and clicking it triggers JavaScript via the bypassed MIME types. The attack requires direct navigation to the endpoint or &lt;object&gt;/&lt;embed&gt; embedding, since &lt;img&gt; tag rendering in the frontend doesn&#39;t allow interactive links. This issue has been fixed in version 3.6.1.</p> <p>SiYuan is a personal knowledge management system. In versions 3.6.0 and below, SanitizeSVG has an incomplete blocklist — it blocks data:text/html and data:image/svg+xml in href attributes but misses data:text/xml and data:application/xml, both of which can render SVG with JavaScript execution. The unauthenticated /api/icon/getDynamicIcon endpoint serves user-controlled input (via the content parameter) directly into SVG markup using fmt.Sprintf with no escaping, served as Content-Type: image/svg+xml. This creates a click-through XSS: a victim navigates to a crafted URL, sees an SVG with an injected link, and clicking it triggers JavaScript via the bypassed MIME types. The attack requires direct navigation to the endpoint or &lt;object&gt;/&lt;embed&gt; embedding, since &lt;img&gt; tag rendering in the frontend doesn&#39;t allow interactive links. This issue has been fixed in version 3.6.1.</p> https://cve.radiocsirt.org/vuln/fkie_cve-2026-32940 https://cve.radiocsirt.org/vuln/ghsa-4mx9-3c2h-hwhg <p><strong>Affected:</strong> Go: github.com/siyuan-note/siyuan</p> <p># SanitizeSVG bypass via data:text/xml in getDynamicIcon (incomplete fix for CVE-2026-29183)</p> <p>`SanitizeSVG` blocks `data:text/html` and `data:image/svg+xml` in href attributes but misses `data:text/xml` and `data:application/xml`. Both render SVG with `onload` JavaScript execution (confirmed in Chromium 136, other browsers untested).</p> <p>`/api/icon/getDynamicIcon` is unauthenticated and serves SVG as `Content-Type: image/svg+xml`. The `content` parameter (type=8) gets embedded into the SVG via `fmt.Sprintf` with no escaping. The sanitizer catches `data:text/html` but `data:text/xml` passes the blocklist -- only three MIME types are checked.</p> <p>This is a click-through XSS: victim visits the crafted URL, sees an SVG with an injected link, clicks it. If SiYuan renders these icons via `&lt;img&gt;` tags in the frontend, links aren&#39;t interactive there -- the attack needs direct navigation to the endpoint URL or `&lt;object&gt;`/`&lt;embed&gt;` embedding.</p> <p>## Steps to reproduce</p> <p>Against SiYuan v3.6.0 (Docker):</p> <p>```sh # 1. data:text/xml bypass -- &lt;a&gt; element preserved with href intact curl -s --get &#34;http://127.0.0.1:6806/api/icon/getDynamicIcon&#34; \ --data-urlencode &#39;type=8&#39; \ --data-urlencode &#39;content=&lt;/text&gt;&lt;a href=&#34;data:text/xml,%3Csvg xmlns=%27http://www.w3.org/2000/svg%27 onload=%27alert(document.domain)%27/%3E&#34;&gt;click&lt;/a&gt;&lt;text&gt;&#39; \ | grep -o &#39;&lt;a [^&gt;]*&gt;&#39; # Output: &lt;a href=&#34;data:text/xml,%3Csvg xmlns=%27http://www.w3.org/2000/svg%27 onload=%27alert(document.domain)%27/%3E&#34;&gt;</p> <p># 2. data:text/html is…</p> <p><strong>Affected:</strong> Go: github.com/siyuan-note/siyuan</p> <p># SanitizeSVG bypass via data:text/xml in getDynamicIcon (incomplete fix for CVE-2026-29183)</p> <p>`SanitizeSVG` blocks `data:text/html` and `data:image/svg+xml` in href attributes but misses `data:text/xml` and `data:application/xml`. Both render SVG with `onload` JavaScript execution (confirmed in Chromium 136, other browsers untested).</p> <p>`/api/icon/getDynamicIcon` is unauthenticated and serves SVG as `Content-Type: image/svg+xml`. The `content` parameter (type=8) gets embedded into the SVG via `fmt.Sprintf` with no escaping. The sanitizer catches `data:text/html` but `data:text/xml` passes the blocklist -- only three MIME types are checked.</p> <p>This is a click-through XSS: victim visits the crafted URL, sees an SVG with an injected link, clicks it. If SiYuan renders these icons via `&lt;img&gt;` tags in the frontend, links aren&#39;t interactive there -- the attack needs direct navigation to the endpoint URL or `&lt;object&gt;`/`&lt;embed&gt;` embedding.</p> <p>## Steps to reproduce</p> <p>Against SiYuan v3.6.0 (Docker):</p> <p>```sh # 1. data:text/xml bypass -- &lt;a&gt; element preserved with href intact curl -s --get &#34;http://127.0.0.1:6806/api/icon/getDynamicIcon&#34; \ --data-urlencode &#39;type=8&#39; \ --data-urlencode &#39;content=&lt;/text&gt;&lt;a href=&#34;data:text/xml,%3Csvg xmlns=%27http://www.w3.org/2000/svg%27 onload=%27alert(document.domain)%27/%3E&#34;&gt;click&lt;/a&gt;&lt;text&gt;&#39; \ | grep -o &#39;&lt;a [^&gt;]*&gt;&#39; # Output: &lt;a href=&#34;data:text/xml,%3Csvg xmlns=%27http://www.w3.org/2000/svg%27 onload=%27alert(document.domain)%27/%3E&#34;&gt;</p> <p># 2. data:text/html is…</p> https://cve.radiocsirt.org/vuln/ghsa-4mx9-3c2h-hwhg