Vulnerability 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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/craftcms/cms/security/advisories/GHSA-7hxc-f267-h5q7
- https://www.vulncheck.com/advisories/craft-cms-rc1-before-path-traversal-via-ens
FAQ
What is CVE-2026-72783?
CVE-2026-72783 is a vulnerability with a CVSS score of 6.2 (MEDIUM). 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 ord...
How severe is CVE-2026-72783?
CVE-2026-72783 has been rated MEDIUM with a CVSS base score of 6.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-72783?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.