CVE-2026-72779Craft CMS 5.0.0-RC1 before 5.10.6 Arbitrary File Read via SplFileObject
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No exploitation reported and no EPSS estimate yet.
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Craft CMS 5.0.0-RC1 before 5.10.6 and 4.0.0-RC1 before 4.18.2 contain an arbitrary file read vulnerability. The create() Twig function restricts class instantiation using a 5-entry blocklist that does not include SplFileObject, allowing an authenticated administrator (with allowAdminChanges=true) to configure a malicious entry type title or URI format that instantiates SplFileObject in a non-sandboxed template context. When a user subsequently creates an entry in the affected section, arbitrary files on the server (such as .env containing the security key and database credentials) are read and rendered as entry titles.
- CVSS
- 4.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N
- Weakness (CWE)
- CWE-184
- 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
- Oct 8, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
craftcms cms craftcms:cms (from the name) | from 5.0.0-RC1 before 5.10.6; 5.10.6 not affected | CNA record |
References
- https://github.com/craftcms/cms/security/advisories/GHSA-957r-qf9p-67xwvendor-advisory
- https://www.vulncheck.com/advisories/craft-cms-rc1-before-arbitrary-file-read-via-splfileobjectthird-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.