Thelia v2.6.1 contains path traversal and PHP code injection vulnerabilities in its translation editor that can be chained to achieve remote code execution. The `item_name` parameter, used to build the translation file's write path, does not sanitize directory traversal sequences such as `../`. This enables an authenticated user with `UPDATE`-level permissions on `admin.configuration.language` to write files outside the expected `templates/` directory, including to web‑accessible paths. Separately, the translation‑writing logic does not escape `\` in user‑supplied values, allowing inputs to break out of the PHP string literal and inject executable code into the translation file. Chained together, these flaws allow a malicious PHP file to be written to a web-accessible path and executed with the web‑server’s privileges.
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References
History

Thu, 15 Oct 2026 17:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-434
CWE-94
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 13 Oct 2026 07:45:00 +0000

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

Mon, 12 Oct 2026 17:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-20
CWE-22

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

Type Values Removed Values Added
Description Thelia v2.6.1 contains path traversal and PHP code injection vulnerabilities in its translation editor that can be chained to achieve remote code execution. The `item_name` parameter, used to build the translation file's write path, does not sanitize directory traversal sequences such as `../`. This enables an authenticated user with `UPDATE`-level permissions on `admin.configuration.language` to write files outside the expected `templates/` directory, including to web‑accessible paths. Separately, the translation‑writing logic does not escape `\` in user‑supplied values, allowing inputs to break out of the PHP string literal and inject executable code into the translation file. Chained together, these flaws allow a malicious PHP file to be written to a web-accessible path and executed with the web‑server’s privileges.
Title CVE-2026-103535
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: certcc

Published:

Updated: 2026-10-15T17:03:58.233Z

Reserved: 2026-09-30T19:07:09.910Z

Link: CVE-2026-103535

cve-icon Vulnrichment

Updated: 2026-10-15T17:03:52.285Z

cve-icon NVD

Status : Deferred

Published: 2026-10-12T15:17:06.560

Modified: 2026-10-15T18:17:22.020

Link: CVE-2026-103535

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-13T07:27:02Z