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