In Thelia v2.6.0, the document upload endpoint properly blocks the upload of executable file types, but the document update endpoint does not perform the same validation. An attacker with administrative Thelia permissions can exploit this vulnerability to upload arbitrary executable files, such as malicious PHP scripts, to achieve remote code execution on the underlying server.

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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 document upload endpoint properly blocks the upload of executable file types, but the document update endpoint does not perform the same validation. An attacker with administrative Thelia permissions can exploit this vulnerability to upload arbitrary executable files, such as malicious PHP scripts, to achieve remote code execution on the underlying server.
Title CVE-2026-103521
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: certcc

Published:

Updated: 2026-10-12T15:00:39.229Z

Reserved: 2026-09-30T19:03:23.929Z

Link: CVE-2026-103521

cve-icon Vulnrichment

Updated: 2026-10-12T15:00:31.494Z

cve-icon NVD

Status : Received

Published: 2026-10-12T15:17:05.503

Modified: 2026-10-12T15:17:05.503

Link: CVE-2026-103521

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-12T17:00:14Z

Weaknesses