An issue was discovered in concrete5 <= 5.6.3.4. The vulnerability exists due to insufficient filtration of user-supplied data (fID) passed to the "concrete5-legacy-master/web/concrete/tools/files/selector_data.php" URL. An attacker could execute arbitrary HTML and script code in a browser in the context of the vulnerable website.

An issue was discovered in concrete5 <= 5.6.3.4. The vulnerability exists due to insufficient filtration of user-supplied data (disable_choose) passed to the "concrete5-legacy-master/web/concrete/tools/files/search_dialog.php" URL. An attacker could execute arbitrary HTML and script code in a browser in the context of the vulnerable website.

Cross-site scripting (XSS) vulnerability in single_pages\download_file.php in concrete5 before 5.6.3 allows remote attackers to inject arbitrary web script or HTML via the HTTP Referer header to index.php/download_file.

Multiple cross-site scripting (XSS) vulnerabilities in concrete5 before 5.7.4 allow remote attackers to inject arbitrary web script or HTML via the (1) banned_word[] parameter to index.php/dashboard/system/conversations/bannedwords/success, (2) channel parameter to index.php/dashboard/reports/logs/view, (3) accessType parameter to index.php/tools/required/permissions/access_entity, (4) msCountry parameter to index.php/dashboard/system/multilingual/setup/load_icon, arHandle parameter to (5) design/submit or (6) design in index.php/ccm/system/dialogs/area/design/submit, (7) pageURL to index.php/dashboard/pages/single, (8) SEARCH_INDEX_AREA_METHOD parameter to index.php/dashboard/system/seo/searchindex/updated, (9) unit parameter to index.php/dashboard/system/optimization/jobs/job_scheduled, (10) register_notification_email parameter to index.php/dashboard/system/registration/open/1, or (11) PATH_INFO to index.php/dashboard/extend/connect/.

Multiple cross-site scripting (XSS) vulnerabilities in concrete5 before 5.7.4 allow remote attackers to inject arbitrary web script or HTML via vectors related to private messages or other unspecified vectors.

Multiple cross-site scripting (XSS) vulnerabilities in concrete5 5.7.2.1, 5.7.2, and earlier allow remote attackers to inject arbitrary web script or HTML via the (1) gName parameter in single_pages/dashboard/users/groups/bulkupdate.php or (2) instance_id parameter in tools/dashboard/sitemap_drag_request.php.

concrete5 before 5.6.3 allows remote attackers to obtain the installation path via a direct request to (1) system/basics/editor.php, (2) system/view.php, (3) system/environment/file_storage_locations.php, (4) system/mail/importers.php, (5) system/mail/method.php, (6) system/permissions/file_types.php, (7) system/permissions/files.php, (8) system/permissions/tasks.php, (9) system/permissions/users.php, (10) system/seo/view.php, (11) view.php, (12) users/attributes.php, (13) scrapbook/view.php, (14) pages/attributes.php, (15) files/attributes.php, or (16) files/search.php in single_pages/dashboard/.

concrete 5.4.0.5, 5.4.1, and 5.4.1.1 allows remote attackers to obtain sensitive information via a direct request to a .php file, which reveals the installation path in an error message, as demonstrated by tools/spellchecker_service.php and certain other files.

Cross-site scripting (XSS) vulnerability in concrete5 Japanese 5.5.1 through 5.5.2.1 and concrete5 English 5.5.0 through 5.6.0.2 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.