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CVE-2026-25896

קריטית 9.3

תיאור (מקור, אנגלית)

fast-xml-parser allows users to validate XML, parse XML to JS object, or build XML from JS object without C/C++ based libraries and no callback. From 4.1.3to before 5.3.5, a dot (.) in a DOCTYPE entity name is treated as a regex wildcard during entity replacement, allowing an attacker to shadow built-in XML entities (<, >, &, ", ') with arbitrary values. This bypasses entity encoding and leads to XSS when parsed output is rendered. This vulnerability is fixed in 5.3.5.

מדדים

CVSS 3.1
9.3 (CRITICAL) מקור הציון: CNA CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N
EPSS — סבירות ניצול
0% (אחוזון 000) נכון ל-23/9/2026
CWE
CWE-185, CWE-79

מוצרים מושפעים

naturalintelligence: fast-xml-parser

קישורים