{"id":"CVE-2026-123619","title":"Lektor through 3.3.14 and 3.4.0b15 Path Traversal via Admin API Drive-Letter Paths","summary":"Lektor through 3.3.14 and 3.4.0b15 contains an absolute path traversal vulnerability in the admin API on Windows that allows attackers to escape the project directory by supplying drive-letter paths that cleanup_path does not normalise. …","severity":"medium","cvss":6.8,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H","cvssSource":"cna","cwe":["CWE-36"],"vendor":"lektor","product":"lektor","affected":["lektor <= 3.3.14","lektor >= 3.4.0b1 <= 3.4.0b15"],"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-06T17:07:44.333808Z"},"exploitAvailable":true,"published":"2026-11-06","updated":"2026-11-06","sourceUpdated":"2026-11-06T17:07:51.308Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-123619","references":[{"url":"https://github.com/lektor/lektor/issues/1301","label":"GitHub Issue #1301"},{"url":"https://github.com/lektor/lektor"},{"url":"https://github.com/lektor/lektor/blob/v3.3.14/lektor/db.py#L1334-L1336","label":"Database.to_fs_path"},{"url":"https://github.com/lektor/lektor/blob/v3.3.14/lektor/utils.py#L83-L94","label":"cleanup_path"},{"url":"https://github.com/lektor/lektor/pull/1302","label":"Proposed fix pull request #1302"},{"url":"https://github.com/lektor/lektor/pull/1288","label":"Earlier incomplete fix pull request #1288"},{"url":"https://www.vulncheck.com/advisories/lektor-through-3.3.14-and-3.4-0b15-path-traversal-via-admin-api-drive-letter-paths","label":"VulnCheck Advisory: Lektor through 3.3.14 and 3.4.0b15 Path Traversal via Admin API Drive-Letter Paths"}],"tags":["cve.org","exploit-available"],"ingestedAt":"2026-11-06T15:54:04.080Z","epss":0.00467,"epssPercentile":0.40699,"slug":"CVE-2026-123619","body":"## Overview\n\nLektor through 3.3.14 and 3.4.0b15 contains an absolute path traversal vulnerability in the admin API on Windows that allows attackers to escape the project directory by supplying drive-letter paths that cleanup_path does not normalise. Attackers can use a malicious web page with cross-site requests or DNS rebinding against the unauthenticated local server to recursively delete directories via deleterecord or write attacker-controlled files via newattachment.\n\n## Affected\n\n- `lektor <= 3.3.14`\n- `lektor >= 3.4.0b1 <= 3.4.0b15`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":49,"depthScoreParts":{"impact":37.4,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":235510,"id":"CVE-2026-123619","ts":1793988059754,"field":"exploit_available","old":"false","new":"true"}]}