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CVE-2026-73858: CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine in solspace craft-freeform

0
Medium
VulnerabilityCVE-2026-73858cvecve-2026-73858cwe-1336
Published: 09/23/2026 (09/23/2026, 14:30:22 UTC)
Source: CVE Database V5
Vendor/Project: solspace
Product: craft-freeform

Description

Solspace Freeform plugin for Craft CMS 5.x is a super flexible form-building tool. From 5.0.0 through 5.10.13, submitted values from public Freeform forms can be evaluated by the isolated Twig renderer when rendered into HTML attributes. An unauthenticated attacker can place Twig expressions in submitted field values, including value attributes, and receive evaluated PHP, operating-system, or Craft filesystem-path constants in the form response. The isolated context was not shown to expose Craft globals, environment variables, credentials, arbitrary files, or code execution, so the confirmed impact is limited server and environment information disclosure and possible rendering errors. This issue is fixed in version 5.10.14.

CVSS v3.1

Score 5.3medium

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected software

solspace

craft-freeform

Affected versions
>=5.0.0 <5.10.14

Technical Details

Data Version
5.2
Assigner Short Name
GitHub_M
Date Reserved
2026-08-13T17:44:28.645Z
Cvss Version
3.1
State
PUBLISHED

Threat ID: 6ab3e6bff7a7c54106ef697f

Added to database: 09/23/2026, 14:48:31 UTC

Last updated: 09/23/2026, 14:48:31 UTC

Views: 1

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