CVE-2026-103522 - Vulnerability Details - OpenCVE

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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact total

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Thelia

Thelia

affected

Version	Status	Constraints
`0`	affected	≤ 2.6.0

No data.

No data.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://kb.cert.org/vuls/id/162329

History

Mon, 12 Oct 2026 15:30:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-434
Metrics		cvssV3_1 `{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Mon, 12 Oct 2026 15:00:00 +0000

Type	Values Removed	Values Added
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.
Title		CVE-2026-103522
References		https://kb.cert.org/vuls/id/162329

Projects

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MITRE

Status: PUBLISHED

Assigner: certcc

Published: 2026-10-12T14:53:34.695Z

Updated: 2026-10-12T14:59:41.947Z

Reserved: 2026-09-30T19:03:43.339Z

Link: CVE-2026-103522

Vulnrichment

Updated: 2026-10-12T14:59:35.609Z

NVD

Status : Received

Published: 2026-10-12T15:17:05.690

Modified: 2026-10-12T15:17:05.690

Link: CVE-2026-103522

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-434

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