https://cve.radiocsirt.org Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Tue, 06 Oct 2026 15:51:15 +0000 https://cve.radiocsirt.org/vuln/cve-2026-66843 <p><strong>Affected:</strong> rrrene html_sanitize_ex</p> <p>Inclusion of Functionality from Untrusted Control Sphere vulnerability in the HTML5 scrubber in rrrene html_sanitize_ex allows a remote attacker to load a document of their choosing into a trusted page via the data attribute of an &lt;object&gt; element in sanitized HTML. object is the one URI-bearing element in lib/html_sanitize_ex/scrubber/html5.ex never registered through allow_tag_with_uri_attributes/3, and its only guard is a prefix match on lowercase &#34;javascript:&#34;, so mixed-case variants, data: URIs, protocol-relative URLs and same-origin paths all survive.</p> <p>This is not unconditional cross-site scripting. A javascript: URL does not execute through &lt;object data&gt; in current browsers, data: documents load in an opaque origin, and host-origin script execution additionally requires the application to serve attacker-controlled content from a same-origin path.</p> <p>This issue affects html_sanitize_ex: from 0.3.1 before 1.4.5 and from 1.5.0-rc.0 before 1.5.3.</p> <p><strong>Affected:</strong> rrrene html_sanitize_ex</p> <p>Inclusion of Functionality from Untrusted Control Sphere vulnerability in the HTML5 scrubber in rrrene html_sanitize_ex allows a remote attacker to load a document of their choosing into a trusted page via the data attribute of an &lt;object&gt; element in sanitized HTML. object is the one URI-bearing element in lib/html_sanitize_ex/scrubber/html5.ex never registered through allow_tag_with_uri_attributes/3, and its only guard is a prefix match on lowercase &#34;javascript:&#34;, so mixed-case variants, data: URIs, protocol-relative URLs and same-origin paths all survive.</p> <p>This is not unconditional cross-site scripting. A javascript: URL does not execute through &lt;object data&gt; in current browsers, data: documents load in an opaque origin, and host-origin script execution additionally requires the application to serve attacker-controlled content from a same-origin path.</p> <p>This issue affects html_sanitize_ex: from 0.3.1 before 1.4.5 and from 1.5.0-rc.0 before 1.5.3.</p> https://cve.radiocsirt.org/vuln/cve-2026-66843