Remote Code Execution Vulnerability in Thelia by Thelia Team
CVE-2026-103521

7.2HIGH

Key Information:

Vendor

Thelia

Status
Thelia
Vendor
CVE Published:
12 October 2026

What is CVE-2026-103521?

In Thelia version 2.6.0, while the document upload endpoint correctly restricts the upload of executable file types, the document update endpoint lacks this crucial validation. This security oversight permits a user with administrative access to manipulate the system, allowing the upload of arbitrary executable files such as malicious PHP scripts. If exploited, this vulnerability could enable the attacker to execute code remotely on the server, posing a significant threat to the integrity and confidentiality of the environment.

Affected Version(s)

Thelia 0 <= 2.6.0

References

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

CVSS V3.1

Score:
7.2
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.