---
id: CVE-2026-107248
title: >-
  Thelia 3.0.0's back-office Email/Messages feature contains a server‑side
  template injection (SSTI) flaw that allows any authenticated user with the
  “Messages” permission to supply unsandboxed Twig templates, which are then
  compiled and e…
summary: >-
  Thelia 3.0.0's back-office Email/Messages feature contains a server‑side
  template injection (SSTI) flaw that allows any authenticated user with the
  “Messages” permission to supply unsandboxed Twig templates, which are then
  compiled and e…
severity: none
published: '2026-10-12'
updated: '2026-10-12'
sourceUpdated: '2026-10-12T16:17:03.203'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-107248'
references:
  - url: 'https://kb.cert.org/vuls/id/162329'
    label: cret@cert.org
tags:
  - nvd
ingestedAt: '2026-10-12T16:57:59.910Z'
---

## Overview

Thelia 3.0.0's back-office Email/Messages feature contains a server‑side template injection (SSTI) flaw that allows any authenticated user with the “Messages” permission to supply unsandboxed Twig templates, which are then compiled and executed as raw code. By modifying Message content, an attacker can execute arbitrary PHP functions, read sensitive files, and potentially write to the filesystem, leading to full compromise of the application and underlying host. This vulnerability has been patched in thelia/twig-engine-module 1.0.9.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.