Vulnerability 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 Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/solspace/craft-freeform/commit/5f7555320635f1cd3b4c478aa0b58e
- https://github.com/solspace/craft-freeform/pull/1986
- https://github.com/solspace/craft-freeform/releases/tag/v5.10.14
- https://github.com/solspace/craft-freeform/security/advisories/GHSA-gxrg-x694-28
- https://github.com/solspace/craft-freeform/security/advisories/GHSA-gxrg-x694-28
FAQ
What is CVE-2026-73858?
CVE-2026-73858 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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 rendere...
How severe is CVE-2026-73858?
CVE-2026-73858 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-73858?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.