Vulnerability in Solspace Craft-Freeform
CVE-2026-73858
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Solspace Craft-Freeform — versions >= 5.0.0, < 5.10.14
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-73858?
- CVE-2026-73858 is a medium-severity vulnerability in Solspace Craft-Freeform, classified under Improper Neutralization of Special Elements Used in a Template Engine. CVSS score: 5.3/10. Published 2026-09-23.
- How severe is CVE-2026-73858?
- Medium severity. CVSS v3 base score is 5.3 out of 10.