Arbitrary file upload in Area 17 Twill Cms

CVE-2026-15518

A vulnerability has been found in AREA 17 Twill CMS up to 3.6.0. The impacted element is the function FileLibraryController::storeFile of the file src/Http/Controllers/Admin/FileLibraryController.php of the component Media Library Insert P…

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-15518?
CVE-2026-15518 is a medium-severity vulnerability in Area 17 Twill Cms, classified under Improper Access Control. CVSS score: 4.7/10. Published 2026-07-13.
How severe is CVE-2026-15518?
Medium severity. CVSS v3 base score is 4.7 out of 10.