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CVE-2011-1992 is an information disclosure vulnerability in the XSS Filter implementation of Microsoft Internet Explorer 8. The flaw allows a remote attacker to infer and read content belonging to a different origin or security zone by abusing the browser’s XSS filtering behavior as a side channel. Available reporting describes the attack as a trial-and-error technique in which crafted requests are used to trigger the filter conditionally, and the attacker observes whether filtering occurred. Additional analysis associates the issue with timing differences introduced by the filter’s pattern-matching logic, enabling incremental disclosure of protected content without direct same-origin access.
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What an attacker gets, and what they’ve been doing with it.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An information disclosure vulnerability in the XSS Filter of Microsoft Internet Explorer 8 that allows remote attackers to read content from a different domain or zone via a trial-and-error attack.
Internet Explorer 8のXSSフィルタにおいて、trial-and-errorおよびタイミング差を利用して別ドメインまたは別ゾーンの内容を読み取れる情報漏えい脆弱性。
An Internet Explorer 8 XSS filter information disclosure vulnerability that allowed cross-domain or cross-zone reading via trial-and-error and timing-based detection of filter activation.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.