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    Shazzer logo

    Shazzer
    Shared online fuzzer

    Fuzzing browsers since 2012

    Made by Gareth Heyes
    Follow me on Twitter: @garethheyes

    Javascript for hackers!

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    New users
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    Recently updated vectors
    Characters that change length on .toLowerCase()Characters allowed instead of equal signCharacters that are valid JS variablesCharacters that can break out of an inline style with double quotesCharacters allowed either side of a variable assignmentCharacters matching RegEx /\w/uiUnicode "Latin" characters using \p{scx=Latin} RegEx
    New vectors
    Unicode "Latin" characters using \p{scx=Latin} RegExCharacters matching RegEx /\w/uiCharacters allowed in between // in absolute URLcharacters between function name and parenthesesCharacters allowed begin from a forward slash character in javascript protocolCharacters allowed while closing script tagCharacters after https URI scheme which prevent URL parsing of hrefchars before img tagsChars allowed before style attribute...Characters allowed before after onerror eventsElectron XSS TESTCharacters allowed in between @importdsqdClosing title tag name separatorsmasato - braves parsing finding entity testmasato - braves parsing finding valid charactersmasato - braves parsing finding valid attributesmasato - braves parsing findingNamed HTML entities that can be closed with !Characters cause self closing tag
    Most popular
    URL domain dot alternatives (5.6k)Characters allowed javascript and colon (5.5k)JavaScript Scheme starting with https:// (5.5k)Characters between < and element name (5.2k)DOM element relationships (4.9k)Characters that can precede the javascript protocol (4.9k)Characters allowed between hostname and / but don't change the hostname (4.9k)Characters allowed javascript and colon copy2 (4.4k)< removal bypass (4.1k)characters allowed between exclamation mark and greater then (3.9k)HTML entities that create ASCII characters inside a JavaScript URL (3.8k)Character that closes HTML tag (3.5k)Characters that close or encapsulate HTML attribute values (3.5k)Entities that cause an external URL before @ (3.4k)Includes Validation Chars Allowed (3.3k)Characters that cause exceptions when URL encoded (3.3k)Characters allowed between multiple HTML attributes (3.2k)Characters allowed in-between operators (3.2k)HTML elements that are self closing or different text content (3.2k)XSS vectors that consume tag (3.1k)
    Most liked
    URL domain dot alternatives (5)Characters allowed between multiple HTML attributes (4)HTML entities that create ASCII characters inside a JavaScript URL (4)Characters allowed between hostname and / but don't change the hostname (4)JavaScript Scheme starting with https:// (4)Entities that cause an external URL before @ (4)Characters allowed javascript and colon (3)Characters that can precede the javascript protocol (3)Characters allowed inside javascript protocol and still returns the hostname (3)Characters that cause an external URL before @ (3)HTML elements that are self closing or different text content (2)Characters allowed after hostname but don't change the hostname (2)Characters allowed after optional chaining (2)Unicode characters that get normalized into path traversal characters (2)Characters that can be used as valid labels in JavaScript (2)Characters that cause exceptions when URL encoded (2)Characters that can start an HTML comment (2)Characters appended at the end of TLD within URL, which yield in the same Origin (2)Characters allowed in-between operators (2)Properties that contain URLs (2)