{"id":"CVE-2026-90871","aliases":[],"cve":{"records":[{"id":"CVE-2026-90871","source":"ProgressSoftware","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-09-14T06:10:04.370Z","published":"2026-10-29T15:56:34.762Z","modified":"2026-10-30T17:15:33.651Z"}],"publishers":[{"name":"ProgressSoftware","role":"CNA","organizationId":"f9fea0b6-671e-4eea-8fde-31911902ae05","modified":"2026-10-29T15:56:34.762Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-10-30T17:15:33.651Z"}],"references":[{"url":"https://progress.lightning.force.com/lightning/r/Knowledge__kav/ka7Pb000001vl86IAA/view","tags":["vendor-advisory"],"source":"ProgressSoftware"}],"weaknesses":[{"id":"CWE-22","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","source":"ProgressSoftware"},{"id":"CWE-73","description":"CWE-73: External Control of File Name or Path","source":"ProgressSoftware"}],"applicability":[],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-10-30T17:15:23.342163Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"yes"},{"name":"Technical Impact","value":"partial"}]}]},"title":"Path Traversal Leading to File Deletion in Ad Hoc Transfer and Web Transfer in Progress WS_FTP Server","titleSource":"ProgressSoftware","descriptionSource":"ProgressSoftware","description":"Improper limitation of a pathname to a restricted directory in Progress Software WS_FTP Server versions prior to 2024.0.7 and 2025.0.4 on Windows could allow an unauthenticated attacker to affect files outside the intended directory.","score":5.3,"severity":"medium","published":"2026-10-29T15:56:34.762Z","modified":"2026-10-30T17:15:33.651Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"Progress Software","name":"WS_FTP Server","platforms":["Windows"],"versions":[{"version":"0","status":"affected","lessThan":"2024.0.7","versionType":"custom"},{"version":"0","status":"affected","lessThan":"2025.0.4","versionType":"custom"}],"defaultStatus":"unaffected","cpes":[],"source":"ProgressSoftware","url":"https://www.cve.org/CVERecord?id=CVE-2026-90871"}],"remediation":[{"text":"By default the affected anonymous account can only delete files it previously created; ensure it is not granted broader write/delete permissions than required on Ad Hoc Transfer and Web Transfer related directories. Contact Progress Software Technical Support for guidance on available mitigations.","source":"ProgressSoftware","url":"https://www.cve.org/CVERecord?id=CVE-2026-90871"}],"references":["https://progress.lightning.force.com/lightning/r/Knowledge__kav/ka7Pb000001vl86IAA/view"],"sources":[{"name":"CVE","id":"CVE-2026-90871","modified":"2026-10-30T17:15:33.651Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-90871"}],"assessments":[{"source":"ProgressSoftware","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","score":5.3}],"sourceAffected":[],"observedAt":"2026-10-30T18:55:13.335Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T05:25:31.914Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[],"aiSummary":{"text":"Progress Software WS_FTP Server versions prior to 2024.0.7 and 2025.0.4 on Windows have a path traversal vulnerability, allowing an unauthenticated attacker to affect files outside the intended directory. The weakness is due to improper limitation of a pathname to a restricted directory. This may allow file deletion.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-30T10:02:37.421Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-90871"}]}}