CVE-2026-123619

Lektor through 3.3.14 and 3.4.0b15 Path Traversal via Admin API Drive-Letter Paths

Published Nov 6, 2026 CVSS 4.0 · 5.9 Medium EPSS < 1% KEV · Not listed
Description
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. 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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Lektor
Lektor lektor
Vendors & Products Lektor
Lektor lektor
Type Values Removed Values Added
Description 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. 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.
Title Lektor through 3.3.14 and 3.4.0b15 Path Traversal via Admin API Drive-Letter Paths
Weaknesses CWE-36
References
Metrics cvssV3_1

{'score': 6.8, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H'}

cvssV4_0

{'score': 5.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Nov 6, 2026, 5:07 PM
Reserved
Nov 6, 2026, 1:04 AM
Status
Deferred
Published
Nov 6, 2026, 3:17 PM
Modified
Nov 12, 2026, 9:36 PM