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.
Published: 2026-10-12
Score: 7.2 High
EPSS: < 1% Very Low
KEV: No
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Remediation

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Tracking

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References
History

Tue, 13 Oct 2026 08:15:00 +0000

Type Values Removed Values Added
First Time appeared Thelia
Thelia thelia
Vendors & Products Thelia
Thelia thelia

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

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 : Deferred

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

Modified: 2026-10-13T13:51:00.250

Link: CVE-2026-103521

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-13T07:55:30Z

Weaknesses