CVE-2026-85386

Concrete CMS before 9.5.4 did not sanitize XML and XSLT documents uploaded through a public Form Block file-upload question. Plain XML uploads were validated by file extension only and stored as publicly accessible files that were served inline from the application's own origin. An unauthenticate...

CVE-2026-85386

Concrete CMS before 9.5.4 is vulnerable to stored cross-site scripting via unauthenticated file upload in the Form Block component. XML and XSLT documents submitted through a public file-upload question were validated by file extension only and served inline from the application's own origin. An ...

EUVD-2026-80879

Concrete CMS before 9.5.4 did not sanitize XML and XSLT documents uploaded through a public Form Block file-upload question. Plain XML uploads were validated by file extension only and stored as publicly accessible files that were served inline from the application's own origin. An unauthenticate...

CVE-2026-85386 Concrete CMS before 9.5.4 stored is vulneratble to cross-site scripting via unauthenticated XML/XSLT file upload in the Form Block

Concrete CMS before 9.5.4 did not sanitize XML and XSLT documents uploaded through a public Form Block file-upload question. Plain XML uploads were validated by file extension only and stored as publicly accessible files that were served inline from the application's own origin. An unauthenticate...

CVE-2026-85386 Concrete CMS before 9.5.4 stored is vulneratble to cross-site scripting via unauthenticated XML/XSLT file upload in the Form Block

Concrete CMS before 9.5.4 did not sanitize XML and XSLT documents uploaded through a public Form Block file-upload question. Plain XML uploads were validated by file extension only and stored as publicly accessible files that were served inline from the application's own origin. An unauthenticate...

CVE-2026-85386: Improper Neutralization of Input During Web Page Generation

Concrete CMS before 9.5.4 did not sanitize XML and XSLT documents uploaded through a public Form Block file-upload question. Plain XML uploads were validated by file extension only and stored as publicly accessible files that were served inline from the application's own origin. An unauthenticate...

CVE-2026-18426 Concrete CMS 9.0.0 to 9.5.2 Express Form block missing authorization allows an authenticated editor to modify Express Forms they cannot edit

Concrete CMS 9.0.0 through 9.5.2 did not enforce a block-level edit-permission check on the Express Form block's control-management actions, which relied solely on CSRF token validation. Because the token is bound to the user and action rather than to a specific block, page, or form, an...

CVE-2026-81896

Concrete CMS before 9.5.3 does not apply HTML entity encoding to user-defined Form block question labels when rendering them as column headers in the Dashboard Form Submissions report concrete/singlepages/dashboard/reports/forms/legacy.php. a rogue editor could store markup or script in a label...

CVE-2026-81896

Concrete CMS before 9.5.3 is affected by a stored cross-site scripting (XSS) vulnerability in the Dashboard Form Submissions report. The root cause is a missing HTML entity encoding on user-defined Form block question labels when rendered as column headers in the file concrete/single_pages/dashbo...

EUVD-2026-78928

Concrete CMS before 9.5.3 does not apply HTML entity encoding to user-defined Form block question labels when rendering them as column headers in the Dashboard Form Submissions report concrete/singlepages/dashboard/reports/forms/legacy.php. a rogue editor could store markup or script in a label...

PT-2026-92130

Concrete CMS before 9.5.3 does not apply HTML entity encoding to user-defined Form block question labels when rendering them as column headers in the Dashboard Form Submissions report concrete/single pages/dashboard/reports/forms/legacy.php. a rogue editor could store markup or script in a label...

CVE-2026-5626 Survey Form Block <= 1.0.1 - Missing Authorization to Authenticated (Subscriber+) Survey Submission Data Export

The Survey Form Block plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the getalldata function in all versions up to, and including, 1.0.1. This makes it possible for authenticated attackers, with Subscriber-level access and above, to export a...

CVE-2026-5626

The Survey Form Block plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the getalldata function in all versions up to, and including, 1.0.1. This makes it possible for authenticated attackers, with Subscriber-level access and above, to export a...

CVE-2026-5626

The CVE affects the WordPress plugin “Survey Form Block” (versions up to and including 1.0.1). A missing capability check in get_all_data() enables authenticated users with Subscriber-level access and above to export all survey submissions and column metadata. Public exploit details are not provi...

EUVD-2026-50110

The Survey Form Block plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the getalldata function in all versions up to, and including, 1.0.1. This makes it possible for authenticated attackers, with Subscriber-level access and above, to export a...

CVE-2026-5626: Missing Authorization

The Survey Form Block plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the getalldata function in all versions up to, and including, 1.0.1. This makes it possible for authenticated attackers, with Subscriber-level access and above, to export a...

CVE-2026-7888

Concrete CMS below 9.5.2 is vulnerable to PHP Object Injection via unserialize calls in the Workflow, Form block, and File/Set components that lack the allowedclasses restriction. An unauthenticated attacker may trigger arbitrary PHP object instantiation if a malicious serialized payload has been...

Concrete CMS is vulnerable to PHP Object Injection via unserialize() calls in the Workflow, Form block, and File/Set components

Concrete CMS below 9.5.2 is vulnerable to PHP Object Injection via unserialize calls in the Workflow, Form block, and File/Set components that lack the allowedclasses restriction. An unauthenticated attacker may trigger arbitrary PHP object instantiation if a malicious serialized payload has been...

Deserialization of Untrusted Data

Overview concrete5/concrete5 is a concrete5 open source CMS. Affected versions of this package are vulnerable to Deserialization of Untrusted Data in the unserialize process in the Workflow, Form block, and File/Set components. An attacker can execute arbitrary PHP code by supplying a crafted...

GHSA-52PR-7VMF-2W7X Concrete CMS is vulnerable to PHP Object Injection via unserialize() calls in the Workflow, Form block, and File/Set components

Concrete CMS below 9.5.2 is vulnerable to PHP Object Injection via unserialize calls in the Workflow, Form block, and File/Set components that lack the allowedclasses restriction. An unauthenticated attacker may trigger arbitrary PHP object instantiation if a malicious serialized payload has been...