{"id":"CVE-2021-27335","details":"KollectApps before 4.8.16c is affected by insecure Java deserialization, leading to Remote Code Execution via a ysoserial.payloads.CommonsCollections parameter.","modified":"2026-03-14T10:49:50.241551Z","published":"2021-02-18T18:15:11.787Z","references":[{"type":"EVIDENCE","url":"https://hacked0x90.net/index.php/2021/02/15/kollectapp-insecure-java-deserialization/"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-27335.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"4.8.16c"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}