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CVE-2026-33135 is a reflected cross-site scripting vulnerability in WeGIA, a web manager for charitable institutions. The issue affects WeGIA 3.6.6 and earlier and is present in the /html/memorando/novo_memorandoo.php endpoint. The vulnerable code reads HTTP GET parameters to display dynamic success messages and, when $_GET['msg'] is equal to 'success', directly concatenates attacker-controlled input from $_GET['sccs'] into an HTML alert <div> that is returned to the browser without sanitization or output encoding. This allows arbitrary JavaScript supplied in the sccs parameter to be reflected into the response and executed in the victim's browser in the context of the WeGIA application.
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Cross-references every affected SKU, including bundled OEM variants.
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