The HTB CTF Cross-Site Scripting (XSS) challenge requires a combination of web exploitation skills and a keen eye for detail. We are presented with several scenarios, each demonstrating different aspects of XSS attacks. The goal is to find and exploit the XSS vulnerabilities to retrieve the flags.

4m read timeFrom systemweakness.com
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Solving the Cross-Site Scripting (XSS) HTB CTF ChallengeChallenge OverviewScenario 1: Extracting Cookie InformationPayloadScenario 2: Identifying the Vulnerable ParameterPayload TestingScenario 3: Determining the Type of XSSScenario 4: Phishing and Stealing CredentialsMalicious Login Form PayloadScenario 5: Session HijackingSession Hijacking ScriptSkill AssessmentThe ChallengeUnderstanding the CodeSetting up a ListenerTriggering the PayloadAnalyzing the ResultsConclusion

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