CVE-2026-103522
CVE-2026-103522
In Thelia v2.6.0, the store banner upload feature performs insufficient filetype validation that relies exclusively on client‑supplied MIME types. An attacker with administrative access can upload a PHP file disguised as an image to bypass validation and achieve remote code execution on the underlying server.
Vulnerability class: Unrestricted File Upload
Published .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-103522?
- CVE-2026-103522 is a high-severity vulnerability, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 7.2/10. Published 2026-10-12.
- How severe is CVE-2026-103522?
- High severity. CVSS v3 base score is 7.2 out of 10.