{"id":"CVE-2021-42655","aliases":["GHSA-5xr5-v2h7-2w7w"],"url":"https://o3.security/vulnerability/CVE-2021-42655","summary":"SQL injection in SiteServer CMS","details":"SiteServer CMS V6.15.51 is affected by a SQL injection vulnerability.","published":"2022-05-24T13:15:07.593Z","modified":"2026-08-07T17:03:06.312510Z","cvss":{"score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":{"score":0.01204,"percentile":0.65454,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"NuGet","name":"SSCMS","fixedVersion":null}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/siteserver/cms"},{"type":"ADVISORY","url":"https://github.com/siteserver/cms/releases/download/siteserver-v6.15.51/siteserver_install.zip"},{"type":"REPORT","url":"https://github.com/siteserver/cms/issues/3237"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T17:03:06.312510Z"}}