CVE Catalog

CVE-2026-73858

MediumCVSS 5.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.43%

34th percentile - higher than 34% of all known CVEs

Summary

The Solspace Freeform plugin for Craft CMS 5.x from 5.0.0 through 5.10.13 allows submitted values from public forms to be evaluated by the isolated Twig renderer when rendered into HTML attributes. An unauthenticated attacker can place Twig expressions in field values and receive evaluated PHP, OS, or Craft filesystem-path constants in the response.

Risk Assessment

Server and environment information disclosure and possible rendering errors may occur. The confirmed impact is limited to information disclosure, without exposure of credentials or code execution.

Recommendation

Update the Solspace Freeform plugin to version 5.10.14 or later. Until then, consider restricting public forms or monitoring for unusual field values.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS