{"id":"CVE-2021-26598","aliases":["GHSA-48p3-xfvw-g59c"],"url":"https://o3.security/vulnerability/CVE-2021-26598","summary":"Incorrect Access Control in ImpressCMS","details":"ImpressCMS before 1.4.3 has Incorrect Access Control because include/findusers.php allows access by unauthenticated attackers (who are, by design, able to have a security token).","published":"2022-03-28T01:15:06.840Z","modified":"2026-07-08T21:26:18.368254Z","cvss":{"score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},"epss":{"score":0.10528,"percentile":0.95527,"asOf":"2026-09-16"},"cisaKev":null,"exploitsKnown":4,"affectedPackages":[{"ecosystem":"Packagist","name":"impresscms/impresscms","fixedVersion":"1.4.3"}],"fix":{"url":"https://github.com/ImpressCMS/impresscms/pull/967","label":"ImpressCMS/impresscms#967"},"references":[{"type":"EVIDENCE","url":"http://karmainsecurity.com/KIS-2022-03"},{"type":"EVIDENCE","url":"http://seclists.org/fulldisclosure/2022/Mar/45"},{"type":"EVIDENCE","url":"https://hackerone.com/reports/1081137"},{"type":"EVIDENCE","url":"https://packetstormsecurity.com/files/166403/ImpressCMS-1.4.2-Incorrect-Access-Control.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26598"},{"type":"WEB","url":"https://github.com/ImpressCMS/impresscms/pull/967"},{"type":"PACKAGE","url":"https://github.com/ImpressCMS/impresscms"},{"type":"WEB","url":"https://github.com/ImpressCMS/impresscms/releases/tag/v1.4.3"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T21:26:18.368254Z"}}