CVE-2026-54721

Silverstripe UserForms provides a visual form builder for the Silverstripe CMS. From 6.0.0 until 6.4.9, 7.0.7, and 7.1.1, the userform email recipient subject field in the CMS accepts a specially crafted payload that can be interpreted as executable server-side code. An authenticated CMS user wit...

GHSA-G8WR-R2V2-VQC6 silverstripe/userforms vulnerable to remote code execution via userforms email subject

Impact The userform email subject field in the CMS is vulnerable to a specially crafted payload being used to run arbitrary code on the server. Reported by Jack Wallace from Bastion Security...

silverstripe/userforms vulnerable to remote code execution via userforms email subject

Impact The userform email subject field in the CMS is vulnerable to a specially crafted payload being used to run arbitrary code on the server. Reported by Jack Wallace from Bastion Security...

Arbitrary Code Injection

Overview silverstripe/userforms is a module that provides a visual form builder for the SilverStripe CMS. Affected versions of this package are vulnerable to Arbitrary Code Injection via the userforms email subject process. An attacker can execute arbitrary code on the server by submitting a...

CVE-2026-54721

Silverstripe UserForms (a visual form builder module for Silverstripe CMS) contains a remote code execution vulnerability in the email recipient subject field. Between versions 6.0.0 and the fixed releases, a specially crafted payload in the subject field is interpreted as executable server-side ...

CVE-2026-54721 Silverstripe UserForms: Remote code execution via userforms email subject

Silverstripe UserForms provides a visual form builder for the Silverstripe CMS. From 6.0.0 until 6.4.9, 7.0.7, and 7.1.1, the userform email recipient subject field in the CMS accepts a specially crafted payload that can be interpreted as executable server-side code. An authenticated CMS user wit...

EUVD-2026-67239

Silverstripe UserForms provides a visual form builder for the Silverstripe CMS. From 6.0.0 until 6.4.9, 7.0.7, and 7.1.1, the userform email recipient subject field in the CMS accepts a specially crafted payload that can be interpreted as executable server-side code. An authenticated CMS user wit...

CVE-2026-54721 Silverstripe UserForms: Remote code execution via userforms email subject

Silverstripe UserForms provides a visual form builder for the Silverstripe CMS. From 6.0.0 until 6.4.9, 7.0.7, and 7.1.1, the userform email recipient subject field in the CMS accepts a specially crafted payload that can be interpreted as executable server-side code. An authenticated CMS user wit...

CVE-2026-54721 Silverstripe UserForms: Remote code execution via userforms email subject

Silverstripe UserForms provides a visual form builder for the Silverstripe CMS. From 6.0.0 until 6.4.9, 7.0.7, and 7.1.1, the userform email recipient subject field in the CMS accepts a specially crafted payload that can be interpreted as executable server-side code. An authenticated CMS user wit...

PT-2026-82687

Silverstripe UserForms provides a visual form builder for the Silverstripe CMS. From 6.0.0 until 6.4.9, 7.0.7, and 7.1.1, the userform email recipient subject field in the CMS accepts a specially crafted payload that can be interpreted as executable server-side code. An authenticated CMS user wit...

CVE-2026-54721: Improper Control of Generation of Code

Silverstripe UserForms provides a visual form builder for the Silverstripe CMS. From 6.0.0 until 6.4.9, 7.0.7, and 7.1.1, the userform email recipient subject field in the CMS accepts a specially crafted payload that can be interpreted as executable server-side code. An authenticated CMS user wit...

PT-2024-40089 · Silverstripe · Silverstripe-Secureassets +1

Name of the Vulnerable Software and Affected Versions: silverstripe-userforms versions prior to 3.0.0 silverstripe-userforms version 3.0.0 when used with silverstripe-secureassets module Description: The issue allows CMS administrators to create public-facing forms with file upload abilities, whi...

CVE-2020-9309

Silverstripe CMS through 4.5 can be susceptible to script execution from malicious upload contents under allowed file extensions for example HTML code in a TXT file. When these files are stored as protected or draft files, the MIME detection can cause browsers to execute the file contents. Upload...

PT-2020-20577

Name of the Vulnerable Software and Affected Versions Silverstripe CMS versions prior to 4.6 Description The issue allows for script execution from malicious upload contents under allowed file extensions. For example, HTML code in a TXT file can be executed when stored as protected or draft files...

CVE-2020-9309: Unrestricted Upload of File with Dangerous Type

Silverstripe CMS through 4.5 can be susceptible to script execution from malicious upload contents under allowed file extensions for example HTML code in a TXT file. When these files are stored as protected or draft files, the MIME detection can cause browsers to execute the file contents. Upload...