CVE-2026-103522 Details
Description
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.
A remote code execution vulnerability exists in Thelia version 2.6.0, specifically within the store banner upload feature. The issue arises from inadequate filetype validation that depends solely on client-supplied MIME types. An attacker with administrative access can exploit this vulnerability by uploading a PHP file disguised as an image, bypassing validation and executing code on the server.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 12, 2026CISA-ADP
Assessed Oct 12, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://kb.cert.org/vuls/id/162329 | [email protected] | AdvisoryBundleRemedy |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-434 | Unrestricted Upload of File with Dangerous Type | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| Thelia | 2.6.0 (semver) 2.6.1 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 12, 2026 | New CVE Received | [email protected] |
| Oct 12, 2026 | CVE Modified | CISA-ADP |