CVE-2026-66829

The CVE concerns html_sanitize_ex (rrrene) with a flaw in html5 scrubber output: attacker-supplied elements are not sanitized, enabling an Open Redirect by navigating the whole document to an attacker-chosen site. The vulnerability affects html_sanitize_ex versions prior to 1.5.3 (from 0.3.1 up to

EUVD-2026-54082

URL Redirection to Untrusted Site 'Open Redirect' vulnerability in the HTML5 scrubber in rrrene htmlsanitizeex allows a remote attacker to force visitors of a page to navigate to a site of the attacker's choosing via a element in sanitized HTML. HtmlSanitizeEx.html5/1 keeps attacker-supplied...

CVE-2026-66843

The vulnerability CVE-2026-66843 affects html_sanitize_ex: from 0.3.1 before 1.5.3. The HTML5 scrubber does not register the tag in allow_tag_with_uri_attributes/3, and its only guard is a prefix check on javascript:, allowing attacker-supplied data: URLs to reach a trusted page via the data att...

EUVD-2026-54080

Inclusion of Functionality from Untrusted Control Sphere vulnerability in the HTML5 scrubber in rrrene htmlsanitizeex allows a remote attacker to load a document of their choosing into a trusted page via the data attribute of an element in sanitized HTML. object is the one URI-bearing element in...