Medium 6.5Published Jun 21, 2026

CVE-2026-56394Craft CMS - Authenticated Path Traversal in assets/icon Extension Parameter

Updated under an hour ago (Oct 27, 2026, 1:30 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

Craft CMS from 4.0.0-RC1 contains an authenticated path traversal vulnerability in the assets/icon endpoint where the extension parameter is not validated before file existence checks. Attackers can bypass extension validation by passing traversal sequences that resolve to existing SVG files, allowing local file read access.

CVSS: 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-22
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Jun 23, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

craftcms cms craftcms:cms (from the name)	from 4.0.0-RC1 before 4.17.7; 4.17.7 not affected; from 5.0.0-RC1 before 5.9.13; 5.9.13 not affected	CNA record

References

References

https://github.com/craftcms/cms/security/advisories/GHSA-c43v-4cr8-6mvp	vendor-advisory
https://github.com/craftcms/cms/commit/30f5f1a8d6edf0f3a00be72c42c78d9dc7d72d5c	patch
https://www.vulncheck.com/advisories/craft-cms-authenticated-path-traversal-in-assets-icon-extension-parameter	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.