{"cve":"CVE-2018-18628","nvd":{"published":"2018-10-23T20:29:00.797","modified":"2026-06-17T01:47:36.193","status":"Modified","description":"An issue was discovered in Pippo 1.11.0. The function SerializationSessionDataTranscoder.decode() calls ObjectInputStream.readObject() to deserialize a SessionData object without checking the object types. An attacker can create a malicious object, base64 encode it, and place it in the PIPPO_SESSION field of a cookie. Sending this cookie may lead to remote code execution.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-502"],"references":["https://github.com/pippo-java/pippo/issues/458","https://github.com/pippo-java/pippo/issues/458"],"products":["pippo:pippo"],"source":"nvd","synced_at":"2026-10-19T20:53:59.789560037+00:00"},"epss":{"cve":"CVE-2018-18628","score":0.05482,"percentile":0.92769,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-7fm6-2qw4-g3x3","url":"https://osv.dev/vulnerability/GHSA-7fm6-2qw4-g3x3","summary":"Deserialization of Untrusted Data in Pippo","modified":"2024-03-04T22:31:00.772605Z","packages":[{"ecosystem":"Maven","name":"ro.pippo:pippo-core","purl":"pkg:maven/ro.pippo/pippo-core","ranges":["<1.12.0"],"fixed":["1.12.0"]}]}],"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."]}