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...

PT-2026-42543

Concrete CMS 9.5.0 and below has Stored XSS on the height parameter. The controller does not validate or sanitize $height. Any user with editor privileges can inject malicious JavaScript that executes in the context of any visitor's browser, potentially leading to session hijacking, credential...

PT-2026-42547

Concrete CMS 9.5.0 and below contains a CSRF vulnerability in the install package method of concrete/controllers/single page/dashboard/extend/install.php. An attacker who can cause an authenticated administrator to visit a crafted page, and who has placed or caused a package to be present under...

PT-2026-42542

Concrete CMS 9.5.0 and below is vulnerable to Stored XSS via OAuth integration name. The OAuth authorize template renders the integration name admin-controlled through Concrete's t translation helper as a sprintf-style format. The ... wrap is built by PHP string interpolation before t runs, so th...

PT-2026-42548

Concrete CMS 9.5.0 and below does not validate a CSRF token before processing requests to /dashboard/extend/update/prepare remote upgrade/. An attacker who controls the remote package returned for a known marketplace item ID can overwrite the package PHP on disk and force its upgrade method to...

PT-2026-42541

Concrete CMS 9.5.0 and below does not validate a CSRF token before processing requests to /dashboard/extend/install/download/. The download method in concrete/controllers/single page/dashboard/extend/install.php checks only the canInstallPackages permission before fetching a remote marketplace...

PT-2026-42683

Name of the Vulnerable Software and Affected Versions Umbraco CMS versions prior to 17.4.0 Description Authenticated users can inject HTML into an input field. This content is then rendered in the confirmation dialog without proper output encoding, leading to Cross-Site Scripting XSS or HTML...

PT-2026-42585

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...

Concrete CMS Cross-Site Request Forgery Vulnerability

Concrete CMS is an open-source content management system developed by Concrete CMS. Versions of Concrete CMS 9.5.0 and earlier had a cross-site request forgeing vulnerability. This vulnerability occurred due to the lack of validation of the CSRF token before processing requests like...

Concrete CMS cross-site scripting vulnerabilities

Concrete CMS is an open-source content management system developed by Concrete CMS. Versions of Concrete CMS 9.5.0 and earlier had a cross-site scripting vulnerability. This vulnerability occurred due to the OAuth integration name being rendered using the t translation assistant. As a result, the...

Concrete CMS cross-site scripting vulnerabilities

Concrete CMS is an open-source content management system developed by Concrete CMS. Versions of Concrete CMS 9.5.0 and earlier had a cross-site scripting vulnerability. This vulnerability stemmed from the controller not verifying or cleaning the height parameter, which could lead to storage-based...

Concrete CMS security vulnerabilities

Concrete CMS is an open-source content management system designed for teams. Concrete CMS versions 9.5.0 and earlier have a security vulnerability that stems from an authorization bypass in the calendar event front-end dialog box. This vulnerability could lead to cross-calendar data leaks...

Concrete CMS security vulnerabilities

Concrete CMS is an open-source content management system developed by Concrete CMS. Versions of Concrete CMS 9.5.0 and earlier have security vulnerabilities. These vulnerabilities stem from the fact that the actiongetevents function in the calendar block does not check the canView permissions of...

Concrete CMS security vulnerabilities

Concrete CMS is an open-source content management system designed for teams. Concrete CMS versions 9.5.0 and earlier have security vulnerabilities. These vulnerabilities stem from a lack of authorization in the bulkuserassignment.php file, which may lead to permissions being granted to...

Concrete CMS Cross-Site Request Forgery Vulnerability

Concrete CMS is an open-source content management system designed for teams. Versions of Concrete CMS 9.5.0 and earlier contained a cross-site request forgeing vulnerability. This vulnerability stemmed from the lack of validation on CSRF tokens, which could allow attackers to force administrators...

Concrete CMS Cross-Site Request Forgery Vulnerability

Concrete CMS is an open-source content management system developed by Concrete CMS. Versions of Concrete CMS 9.5.0 and earlier had a cross-site request forgeing vulnerability. This vulnerability stemmed from a CSRF vulnerability in the installpackage method, which could allow attackers to force t...

Concrete CMS Cross-Site Request Forgery Vulnerability

Concrete CMS is an open-source content management system developed by Concrete CMS. Versions of Concrete CMS 9.5.0 and earlier had a cross-site request forgeing vulnerability. This vulnerability stemmed from the lack of validation of CSRF tokens, which could allow attackers to overwrite PHP files...

Concrete CMS Cross-Site Request Forgery Vulnerability

Concrete CMS is an open-source content management system designed for teams. Versions of Concrete CMS 9.5.0 and earlier contained a cross-site request forgeing vulnerability. This vulnerability stemmed from the doupdate method not verifying the CSRF token, which could allow attackers to trigger...

Concrete CMS code vulnerabilities

Concrete CMS is an open-source content management system developed by Concrete CMS. Versions of Concrete CMS 9.5.0 and earlier have code vulnerabilities. These vulnerabilities stem from the RSS Displayer block accepting arbitrary feed URLs without validation, which may lead to redirection to...

Concrete CMS security vulnerabilities

Concrete CMS is an open-source content management system designed for teams. Concrete CMS versions 9.5.0 and earlier have a security vulnerability. This vulnerability stems from the submitpassword method bypassing the viewfile permission checks, which may allow unauthorized access to files...