{"api_version":"1","generated_at":"2026-07-23T12:23:20+00:00","cve":"CVE-2013-4520","urls":{"html":"https://cve.report/CVE-2013-4520","api":"https://cve.report/api/cve/CVE-2013-4520.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2013-4520","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2013-4520"},"summary":{"title":"CVE-2013-4520","description":"xslt.c in libxslt before 1.1.25 allows context-dependent attackers to cause a denial of service (crash) via a stylesheet that embeds a DTD, which causes a structure to be accessed as a different type.  NOTE: this issue is due to an incomplete fix for CVE-2012-2825.","state":"PUBLISHED","assigner":"redhat","published_at":"2013-12-14 20:55:03","updated_at":"2026-04-29 01:13:23"},"problem_types":["NVD-CWE-Other","n/a"],"metrics":[{"version":"2.0","source":"nvd@nist.gov","type":"Primary","score":"4.3","severity":"","vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","data":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:N/I:N/A:P","baseScore":4.3,"accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL"}}],"references":[{"url":"https://bugzilla.novell.com/show_bug.cgi?id=849019","name":"https://bugzilla.novell.com/show_bug.cgi?id=849019","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Patch"],"title":"Access 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