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VULNERABILITIES

CVE-2026-107248 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NDDVolerionCVSS-B:8.8 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA: CISA-ADPCVSS-B:8.8 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://kb.cert.org/vuls/id/162329 [email protected]AdvisoryBundleRemedy

Weakness Enumeration

CWE-IDCWE NameSource
CWE-1336Improper Neutralization of Special Elements Used in a Template EngineCISA-ADP
CWE-94Improper Control of Generation of Code ('Code Injection')CISA-ADP

Affected Products

ProductVersions
Thelia
2.6.0 (semver)
2.6.1 (semver)

CPE

  • No CPEs found in CPE dictionary for this product.

Remediation

  • Upgrade: 1.0.9moderate effort
  • Mitigation:low effort

    Restrict access to Thelia administrative interfaces, disable or tightly limit file-upload and template-editing features, and remove PHP execution permissions from user-writable directories.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-107248
NVD Published Date:
Oct 12, 2026
NVD Last Modified:
Oct 15, 2026
Source:
[email protected]
CVE-2026-107248 Details - Not Deferred