{"cve":"CVE-2013-6440","nvd":{"published":"2014-02-14T15:55:05.110","modified":"2026-06-17T00:00:29.870","status":"Modified","description":"The (1) BasicParserPool, (2) StaticBasicParserPool, (3) XML Decrypter, and (4) SAML Decrypter in Shibboleth OpenSAML-Java before 2.6.1 set the expandEntityReferences property to true, which allows remote attackers to conduct XML external entity (XXE) attacks via a crafted XML DOCTYPE declaration.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-200"],"references":["http://blog.sendsafely.com/post/69590974866/web-based-single-sign-on-and-the-dangers-of-saml-xml","http://rhn.redhat.com/errata/RHSA-2014-0170.html","http://rhn.redhat.com/errata/RHSA-2014-0171.html","http://rhn.redhat.com/errata/RHSA-2014-0172.html","http://rhn.redhat.com/errata/RHSA-2014-0195.html"],"products":["internet2:opensaml","shibboleth:opensaml"],"source":"nvd","synced_at":"2026-10-19T20:32:06.812358378+00:00"},"epss":{"cve":"CVE-2013-6440","score":0.02752,"percentile":0.86223,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-v723-58jv-2qc4","url":"https://osv.dev/vulnerability/GHSA-v723-58jv-2qc4","summary":"Exposure of Sensitive Information to an Unauthorized Actor in OpenSAML","modified":"2024-12-05T05:43:44.128655Z","packages":[{"ecosystem":"Maven","name":"org.opensaml:opensaml","purl":"pkg:maven/org.opensaml/opensaml","ranges":["<2.6.1"],"fixed":["2.6.1"]}]}],"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."]}