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TI-2026-51875 Aliases CVE-2026-73858GHSA-gxrg-x694-283w

Solspace Freeform: Limited Twig template injection via submitted field values

Priority MEDIUM 63CWE-1336Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-1336.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00549 46th percentileScored 2026-11-07
Fix Fixed craft-freeform (solspace): 5.10.14solspace/craft-freeform (Packagist): 5.10.14

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
solspacecraft-freeform5.0.0 to before 5.10.145.10.14Patch availableCNA
—solspace/craft-freeform (Packagist)5.0.0 to before 5.10.145.10.14Patch availableGHSA-gxrg-x694-283w
  • craft-freeform Vendorsolspace Affected 5.0.0 to before 5.10.14 Fixed in 5.10.14 Patch available CNA
  • solspace/craft-freeform (Packagist) Vendor— Affected 5.0.0 to before 5.10.14 Fixed in 5.10.14 Patch available GHSA-gxrg-x694-283w

Remediation

  • Fix · CNA craft-freeform (solspace) Fixed in 5.10.14
  • Fix · GHSA-gxrg-x694-283w solspace/craft-freeform (Packagist) Fixed in 5.10.14 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-73858
  2. 2026-10-03 Alias added: GHSA-gxrg-x694-283w

References

  • TI-2025-32483 Freeform 5.0.0 to before 5.10.16, a plugin for CraftCMS, contains an Server-side template… CVSS 3.1CRITICAL 9.8
  • TI-2026-21179 Cross-site scripting in solspace craft-freeform CVSS 4.0MEDIUM 5.1

Sources