Solspace Freeform: Limited Twig template injection via submitted field values

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

5.3 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS

• CVE-2026-73858: 0.55% estimated exploitation activity in the next 30 days; percentile 45.98 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Summary A limited server-side Twig template injection issue was identified in Solspace Freeform for Craft CMS. In affected versions, submitted form field values could be evaluated as Twig in certain rendering contexts. Unauthenticated users could submit Twig expressions through public Freeform forms and have those expressions evaluated when the submitted values were rendered back into the form response. Confirmed impact includes disclosure of limited server/environment information, such as the PHP version and absolute filesystem paths. No evidence was found that this issue allowed access to Craft globals, environment variables, database credentials, mailer credentials, security keys, or remote code execution in the tested environment. Details Plugin: Solspace Freeform Affected versions: Freeform 5.0.0 through 5.10.13 CMS: Craft CMS Authentication required: None Attack vector: Public Freeform form submission Submitted field values were passed through Freeform’s isolated Twig renderer.…

Published by the source

23 Sep 2026, 14:31 UTC

Last modified by the source

23 Sep 2026, 14:45 UTC

Source last checked

26 Oct 2026, 14:53 UTC

1. Revision 2 · amended · 26 Oct 2026

   Amended from ghsa record GHSA-gxrg-x694-283w

2. Revision 1 · created · 24 Oct 2026

   Published from osv record GHSA-gxrg-x694-283w

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# Patch Next advisory brief: CVE-2026-73858

Advisory: Solspace Freeform: Limited Twig template injection via submitted field values
IDs: CVE-2026-73858, GHSA-gxrg-x694-283w
Record: https://patchnext.com/advisories/cve-2026-73858 (revision 2, source checked 26 Oct 2026, 14:53 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 5.3)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: solspace/craft-freeform 5.10.14. A vendor fix does not mean a deployment is fixed.

## Affected components
- Packagist solspace/craft-freeform: affected >= 5.0.0, <= 5.10.13; fixed in 5.10.14

## Suggested inspection (read-only)
- Packagist solspace/craft-freeform: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on solspace/craft-freeform.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-gxrg-x694-283w (OSV record GHSA-gxrg-x694-283w lists affected ranges: Packagist solspace/craft-freeform >=5.0.0 <5.10.14 (fixed))
- Verified: https://github.com/advisories/GHSA-gxrg-x694-283w (GitHub-reviewed advisory GHSA-gxrg-x694-283w lists affected ranges: Packagist solspace/craft-freeform >=5.0.0 <=5.10.13)

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