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character.","severity":{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.06497,"percentile":0.93806,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-79"],"published":"2009-12-21T16:00:00Z","modified":"2026-06-26T10:12:49Z","exploits":[{"source":"exploitdb","id":"EDB-33414","title":"PHP 5.2.11 - 'htmlspecialCharacters()' Malformed Multibyte Character Cross-Site Scripting (1)","type":"remote","platform":"php","date":"2009-12-17","verified":true,"url":"https://www.exploit-db.com/exploits/33414"},{"source":"exploitdb","id":"EDB-33415","title":"PHP 5.2.11 - 'htmlspecialCharacters()' Malformed Multibyte Character Cross-Site Scripting 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