{"id":"CVE-2021-26598","aliases":["EUVD-2022-1301","GHSA-48p3-xfvw-g59c"],"status":"published","title":"Incorrect Access Control in ImpressCMS","description":"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).","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.10528,"percentile":0.95834,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-287"],"published":"2022-03-28T00:31:42Z","modified":"2026-10-24T10:30:40Z","exploits":[{"source":"nuclei","id":"CVE-2021-26598","title":"ImpressCMS \u003c1.4.3 - Incorrect Authorization","type":"detection template","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-26598.yaml"}],"fixes":[{"ecosystem":"Packagist","package":"impresscms/impresscms","fixed_in":["1.4.3"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"impresscms/impresscms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.3"}]}]},{"source":"osv","ecosystem":"Packagist","package":"impresscms/impresscms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.3"}]}]}],"products":[{"vendor":"impresscms","product":"impresscms"}],"references":[{"url":"https://hackerone.com/reports/1081137","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence","web"]},{"url":"https://packetstormsecurity.com/files/166403/ImpressCMS-1.4.2-Incorrect-Access-Control.html","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","VDB Entry","evidence","web"]},{"url":"http://karmainsecurity.com/KIS-2022-03","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence","web"]},{"url":"http://seclists.org/fulldisclosure/2022/Mar/45","tags":["x_refsource_MISC","x_transferred","Exploit","Mailing List","Third Party Advisory","evidence","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26598","tags":["advisory"]},{"url":"https://github.com/ImpressCMS/impresscms/pull/967","tags":["web"]},{"url":"https://github.com/ImpressCMS/impresscms/releases/tag/v1.4.3","tags":["web"]},{"url":"https://github.com/advisories/GHSA-48p3-xfvw-g59c"},{"url":"https://github.com/ImpressCMS/impresscms","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2021-26598","description":"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 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