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CVE-2004-0549 is a cross-domain security context validation flaw in the Internet Explorer 6 WebBrowser ActiveX control / MSHTML rendering engine. Internet Explorer incorrectly determines the security zone of a browser frame that is opened in one domain and then redirected by a web server to a different domain. The issue can be triggered via the showModalDialog method together with location changes, including delayed HTTP redirect behavior or an HTTP response containing a Location header with a "URL:"-prefixed ms-its URI, and also by modifying the window location attribute. By confusing IE about the effective origin/security zone of the redirected content, attacker-controlled script can execute in a more trusted context, including the Local Machine Zone. The vulnerability was notably exploited by Download.Ject/Scob/Toofer using ADODB.Stream to retrieve and run malicious code. Any application embedding the WebBrowser ActiveX control or using MSHTML, including products such as Outlook and Outlook Express, may also be affected.
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No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
2 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.