Craft CMS versions >= 5.0.0-RC1 before 5.10.6 and >= 4.0.0-RC1 before 4.18.2 contain a theoretical path traversal weakness in the ensurePathIsContained function of the Local file system class. The order of operations validates the path before normalization, so normalization could invalidate prior validation assumptions (a desanitization-style issue) and potentially resolve to files outside the intended volume directory. The vendor notes the issue is not directly exploitable and no exploitable scenario has been discovered; the fix is recommended for hardening.
Advisories

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Fixes

Solution

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Workaround

No workaround given by the vendor.

History

Fri, 14 Aug 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 11 Aug 2026 12:45:00 +0000

Type Values Removed Values Added
Description Craft CMS versions >= 5.0.0-RC1 before 5.10.6 and >= 4.0.0-RC1 before 4.18.2 contain a theoretical path traversal weakness in the ensurePathIsContained function of the Local file system class. The order of operations validates the path before normalization, so normalization could invalidate prior validation assumptions (a desanitization-style issue) and potentially resolve to files outside the intended volume directory. The vendor notes the issue is not directly exploitable and no exploitable scenario has been discovered; the fix is recommended for hardening.
Title Craft CMS 5.0.0-RC1 before 5.10.6 Path Traversal via ensurePathIsContained
First Time appeared Craftcms
Craftcms craft Cms
Weaknesses CWE-22
CPEs cpe:2.3:a:craftcms:craft_cms:*:*:*:*:*:*:*:*
Vendors & Products Craftcms
Craftcms craft Cms
References
Metrics cvssV3_1

{'score': 6.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-08-14T19:51:58.185Z

Reserved: 2026-08-10T15:10:15.963Z

Link: CVE-2026-72783

cve-icon Vulnrichment

Updated: 2026-08-14T19:51:55.299Z

cve-icon NVD

Status : Received

Published: 2026-08-11T13:19:08.940

Modified: 2026-08-14T20:16:57.040

Link: CVE-2026-72783

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-12T01:00:03Z

Weaknesses