Threats Tagged 'ghsa-r8xc-fmjg-37c5'
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Threats Tagged 'ghsa-r8xc-fmjg-37c5'
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CVE-2026-66370 is an open redirect vulnerability in the html_sanitize_ex HTML5 scrubber by rrrene. It allows an unauthenticated remote attacker to manipulate form input elements to redirect form submissions to an attacker-controlled external URL. The vulnerability arises because the sanitizer does not validate the scheme of the form and formaction attributes on input elements, allowing cross-origin URLs to persist after sanitization. No script execution is possible, and the attacker cannot inject new forms, only retarget existing forms on the page. This affects versions from 0.3.1 up to but not including 1.5.3, including 1.5.0-rc.0. Join the discussion | GCVE Database | 08/06/2026, 18:30:49 UTC Added: 08/11/2026, 18:54:10 UTC |
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