{"cve":"CVE-2013-4338","nvd":{"published":"2013-09-12T13:28:37.443","modified":"2026-06-16T23:57:03.130","status":"Modified","description":"wp-includes/functions.php in WordPress before 3.6.1 does not properly determine whether data has been serialized, which allows remote attackers to execute arbitrary code by triggering erroneous PHP unserialize operations.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-94"],"references":["http://codex.wordpress.org/Version_3.6.1","http://core.trac.wordpress.org/changeset/25325","http://lists.fedoraproject.org/pipermail/package-announce/2013-September/116828.html","http://lists.fedoraproject.org/pipermail/package-announce/2013-September/116832.html","http://lists.fedoraproject.org/pipermail/package-announce/2013-September/117118.html"],"products":["wordpress:wordpress"],"source":"nvd","synced_at":"2026-10-19T20:29:16.037019470+00:00"},"epss":{"cve":"CVE-2013-4338","score":0.09062,"percentile":0.95289,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}