{"id":"CVE-2019-12415","aliases":["GHSA-9jwc-q6j3-8g9g"],"url":"https://o3.security/vulnerability/CVE-2019-12415","summary":"Improper Restriction of XML External Entity Reference in Apache POI ","details":"In Apache POI up to 4.1.0, when using the tool XSSFExportToXml to convert user-provided Microsoft Excel documents, a specially crafted document can allow an attacker to read files from the local filesystem or from internal network resources via XML External Entity (XXE) Processing.","published":"2019-10-23T20:15:12.707Z","modified":"2026-07-08T05:54:49.334216327Z","cvss":{"score":5.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"},"epss":{"score":0.0099,"percentile":0.60785,"asOf":"2026-09-16"},"cisaKev":null,"exploitsKnown":2,"affectedPackages":[{"ecosystem":"Maven","name":"org.apache.poi:poi","fixedVersion":"4.1.1"}],"fix":null,"references":[{"type":"WEB","url":"https://lists.apache.org/thread.html/13a54b6a03369cfb418a699180ffb83bd727320b6ddfec198b9b728e%40%3Cannounce.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/2ac0327748de0c2b3c1c012481b79936797c711724e0b7da83cf564c%40%3Cuser.tika.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/895164e03a3c327449069e2fd6ced0367561878b3ae6a8ec740c2007%40%3Cuser.tika.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/d88b8823867033514d7ec05d66f88c70dc207604d3dcbd44fd88464c%40%3Cuser.tika.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/r204ba2a9ea750f38d789d2bb429cc0925ad6133deea7cbc3001d96b5%40%3Csolr-user.lucene.apache.org%3E"},{"type":"ADVISORY","url":"https://www.oracle.com//security-alerts/cpujul2021.html"},{"type":"ADVISORY","url":"https://www.oracle.com/security-alerts/cpuApr2021.html"},{"type":"ADVISORY","url":"https://www.oracle.com/security-alerts/cpuapr2020.html"},{"type":"ADVISORY","url":"https://www.oracle.com/security-alerts/cpujan2020.html"},{"type":"ADVISORY","url":"https://www.oracle.com/security-alerts/cpujan2021.html"},{"type":"ADVISORY","url":"https://www.oracle.com/security-alerts/cpujul2020.html"},{"type":"ADVISORY","url":"https://www.oracle.com/security-alerts/cpuoct2020.html"},{"type":"ADVISORY","url":"https://www.oracle.com/security-alerts/cpuoct2021.html"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T05:54:49.334216327Z"}}