{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-123620","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-11-06T01:04:42.201Z","datePublished":"2026-11-06T15:00:55.708Z","dateUpdated":"2026-11-06T15:00:55.708Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-11-06T15:00:55.708Z"},"datePublic":"2026-11-05T00:00:00.000Z","title":"Usermin through 2.570 OS Command Injection via Read Mail IMAP Folder Deletion","descriptions":[{"lang":"en","value":"Usermin through 2.570 contains an OS command injection vulnerability in the Read Mail module that allows authenticated users to execute commands through unsanitized IMAP folder names. Attackers can create a folder containing shell metacharacters via an external IMAP client, then delete it in Usermin to run commands as their system account, bypassing webmail-only restrictions."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","cweId":"CWE-78","type":"CWE"}]}],"affected":[{"vendor":"webmin","product":"usermin","defaultStatus":"unaffected","versions":[{"version":"0","lessThanOrEqual":"2.570","status":"affected","versionType":"custom"}],"packageURL":"pkg:github/webmin/usermin"}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:webmin:usermin:*:*:*:*:*:*:*:*","versionEndIncluding":"2.570"}]}]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":7.7,"baseSeverity":"HIGH"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH"}}],"references":[{"url":"https://github.com/webmin/usermin/issues/142","tags":["issue-tracking"],"name":"GitHub Issue #142"},{"url":"https://github.com/webmin/usermin","tags":["product"]},{"url":"https://github.com/webmin/usermin/commit/8a45420282ff04c943f05d9241a3c55afb9bca79","name":"Fix commit 8a45420","tags":["patch"]},{"url":"https://github.com/webmin/usermin/blob/2.570/mailbox/mailbox-lib.pl#L1031-L1040","name":"delete_folder in mailbox-lib.pl","tags":["technical-description"]},{"url":"https://hackmd.io/@leediay/H144QKY6zl","name":"Researcher write-up","tags":["technical-description"]},{"name":"VulnCheck Advisory: Usermin through 2.570 OS Command Injection via Read Mail IMAP Folder Deletion","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/usermin-through-2.570-os-command-injection-via-read-mail-imap-folder-deletion"}],"credits":[{"lang":"en","value":"leediay153 from Viettel Post","type":"finder"},{"lang":"en","value":"Ilia Ross (iliaross)","type":"remediation developer"}],"x_generator":{"engine":"vulncheck-endgame"}}}}