CVE-2026-8134

Concrete CMS 9.5.0 and earlier fails to sanitize path traversal in the ptComposerFormLayoutSetControlCustomTemplate field when saving page-type composer form layouts. An authenticated rogue administrator with composer form editing rights can cause arbitrary readable files to be included on the se...

GHSA-2QJJ-H6WP-C7H7 Umbraco.Cms: Open Redirect Vulnerability in Surface Controllers

Impact Some of the Surface Controllers in the CMS provide to support member related operations fail to validate redirect URLs, making Razor templates that derive 'RedirectUrl' from user-controlled query parameters vulnerable to malicious redirect attacks. Patches The issue is resolved in versions...

Umbraco.Cms: Open Redirect Vulnerability in Surface Controllers

Impact Some of the Surface Controllers in the CMS provide to support member related operations fail to validate redirect URLs, making Razor templates that derive 'RedirectUrl' from user-controlled query parameters vulnerable to malicious redirect attacks. Patches The issue is resolved in versions...

PT-2026-42557

Name of the Vulnerable Software and Affected Versions Concrete CMS versions prior to 9.5.1 Description The OAuth 2.0 Authorization-Code Handler fails to verify account status. This allows users who are suspended, banned, or terminated employees, specifically those with the uIsActive variable set ...

PT-2026-42535

Name of the Vulnerable Software and Affected Versions Concrete CMS versions prior to 9.5.1 Description Concrete CMS fails to sanitize path traversal sequences in the ptComposerFormLayoutSetControlCustomTemplate field during the process of saving page type composer form layouts. An authenticated...

PT-2026-42569

Name of the Vulnerable Software and Affected Versions Concrete CMS versions 9.0.0 through 9.4.x Description Cross Site Request Forgery CSRF occurs at the 'concrete/controllers/dialog/page/bulk/design' endpoint. CSRF is a flaw that allows an attacker to induce users to perform actions they do not...

PT-2026-42570

Name of the Vulnerable Software and Affected Versions Concrete CMS versions 9.0.0 through 9.4.x Description Cross Site Request Forgery CSRF occurs at the 'concrete/controllers/dialog/event/duplicate' endpoint. CSRF is a flaw that allows an attacker to trick a victim into performing actions they d...

PT-2026-42575

Name of the Vulnerable Software and Affected Versions Concrete CMS versions 9.0.0 through 9.4.x Description Cross Site Request Forgery CSRF occurs at the 'concrete/controllers/backend/file' endpoint within the rescan function. CSRF is a type of attack that tricks a victim into submitting a...

PT-2026-42561

Name of the Vulnerable Software and Affected Versions Concrete CMS versions prior to 9.5.1 Description An Insecure Direct Object Reference IDOR exists where the '/ccm/frontend/conversations/get rating' endpoint confirms the existence of and returns the rating score for any message by ID. IDOR is ...

PT-2026-42562

Name of the Vulnerable Software and Affected Versions Concrete CMS versions prior to 9.5.1 Description Unauthenticated users can access page metadata on any page that has a configured summary template. This allows for the disclosure of private, draft, and restricted pages, leaking information suc...

PT-2026-42556

Name of the Vulnerable Software and Affected Versions Concrete CMS versions prior to 9.5.1 Description An Insecure Direct Object Reference IDOR exists in the 'AddMessage' and 'UpdateMessage' conversation controllers. These controllers accept user-supplied file attachment IDs through the attachmen...

PT-2026-42572

Name of the Vulnerable Software and Affected Versions Concrete CMS versions 9.0.0 through 9.4.x Description Cross Site Request Forgery CSRF occurs at the 'concrete/controllers/backend/file' endpoint within the addFavoriteFolder$id function. CSRF is a flaw that allows an attacker to induce a user ...

PT-2026-42574

Name of the Vulnerable Software and Affected Versions Concrete CMS versions 9.0.0 through 9.4.x Description Cross Site Request Forgery CSRF occurs at the 'concrete/controllers/backend/file' endpoint within the star function. CSRF is a flaw that allows an attacker to induce a user to perform actio...

PT-2026-42558

Name of the Vulnerable Software and Affected Versions Concrete CMS versions 9.5.0 and earlier Description An Insecure Direct Object Reference IDOR, which occurs when an application provides direct access to objects based on user-supplied input, combined with a missing authentication gate allows...

PT-2026-42576

Name of the Vulnerable Software and Affected Versions Concrete CMS versions 9.0 through 9.4.x Description Cross Site Request Forgery CSRF occurs at the 'concrete/controllers/backend/file' endpoint within the rescanMultiple function. CSRF is a type of attack that tricks a victim into submitting a...

PT-2026-42554

Name of the Vulnerable Software and Affected Versions Concrete CMS versions 9.5.0 and earlier Description An Insecure Direct Object Reference IDOR, which occurs when an application provides direct access to objects based on user-supplied input, exists in the Express Entry Detail block. By...

PT-2026-42580

Name of the Vulnerable Software and Affected Versions Concrete CMS versions 9.5.0 and earlier Description The RSS Displayer block accepts a feed URL from page editors and fetches it server-side without proper validation. This lack of validation allows for redirect-to-internal bypasses, where an...

PT-2026-42582

Name of the Vulnerable Software and Affected Versions Concrete CMS versions prior to 9.5.0 Description Cross Site Request Forgery CSRF occurs at the 'concrete/controllers/dialog/logs/delete' endpoint. CSRF is a type of attack that tricks a victim into submitting a malicious request. It is not...

PT-2026-42581

Name of the Vulnerable Software and Affected Versions Concrete CMS versions prior to 9.5.1 Description Stored Cross-Site Scripting XSS occurs via the 'external-link' page cvName because the updateCollectionAliasExternal function bypasses sanitization. Stored XSS is a flaw where malicious scripts...

PT-2026-42546

Name of the Vulnerable Software and Affected Versions Concrete CMS versions 9.5.0 and earlier Description Missing authorization in the 'bulk user assignment.php' endpoint allows an authenticated user with access to the bulk user assignment dashboard page to perform privilege escalation to the...