A XML External Entity (XXE) vulnerability was discovered in symphony\lib\toolkit\class.xmlelement.php in Symphony 2.7.10 which can lead to an information disclosure or denial of service (DOS).

Cross-site scripting (XSS) vulnerabilities in Symphony CMS 3.0.0 allow remote attackers to inject arbitrary web script or HTML to fields['body'] param via events\event.publish_article.php

content/content.blueprintsevents.php in Symphony CMS 3.0.0 allows XSS via fields['name'] to appendSubheading.

content/content.blueprintspages.php in Symphony 2.7.6 has XSS via the pages content page.

Symphony 2 2.6.11 has XSS in the meta[navigation_group] parameter to content/content.blueprintssections.php.

Remote Code Execution vulnerability in symphony/content/content.blueprintsdatasources.php in Symphony CMS through 2.6.11 allows remote attackers to execute code and get a webshell from the back-end. The attacker must be authenticated and enter PHP code in the datasource editor or event editor.

Symphony 2.6.9 has XSS in publish/notes/edit/##/saved/ via the bottom form field.

Cross-site scripting (XSS) vulnerability in template/usererror.missing_extension.php in Symphony CMS before 2.6.10 allows remote attackers to inject arbitrary web script or HTML via the existing-folder parameter.

Directory traversal vulnerability in template/usererror.missing_extension.php in Symphony CMS before 2.6.10 allows remote attackers to rename arbitrary files via a .. (dot dot) in the existing-folder and new-folder parameters.

Session fixation vulnerability in Symphony CMS 2.6.7, when session.use_only_cookies is disabled, allows remote attackers to hijack web sessions via the PHPSESSID parameter.

Multiple cross-site scripting (XSS) vulnerabilities in content/content.systempreferences.php in Symphony CMS before 2.6.4 allow remote attackers to inject arbitrary web script or HTML via the (1) email_sendmail[from_name], (2) email_sendmail[from_address], (3) email_smtp[from_name], (4) email_smtp[from_address], (5) email_smtp[host], (6) email_smtp[port], (7) jit_image_manipulation[trusted_external_sites], or (8) maintenance_mode[ip_whitelist] parameters to system/preferences.

Multiple cross-site scripting (XSS) vulnerabilities in Symphony CMS 2.6.3 allow remote attackers to inject arbitrary web script or HTML via the (1) Name, (2) Navigation Group, or (3) Label parameter to blueprints/sections/edit/1.

Cross-site scripting (XSS) vulnerability in Symphony CMS 2.6.2 allows remote attackers to inject arbitrary web script or HTML via the sort parameter to system/authors.

Cross-site request forgery (CSRF) vulnerability in Symphony CMS before 2.3.2 allows remote attackers to hijack the authentication of administrators for requests that conduct SQL injection attacks via the sort parameter to system/authors/, related to CVE-2013-2559.

SQL injection vulnerability in Symphony CMS before 2.3.2 allows remote authenticated users to execute arbitrary SQL commands via the sort parameter to system/authors/. NOTE: this can be leveraged using CSRF to allow remote unauthenticated attackers to execute arbitrary SQL commands.

SQL injection vulnerability in lib/toolkit/events/event.section.php in Symphony CMS 2.0.7 and 2.1.1 allows remote attackers to execute arbitrary SQL commands via the send-email[recipient] parameter to about/. NOTE: some of these details are obtained from third party information.

Multiple cross-site scripting (XSS) vulnerabilities in Symphony CMS 2.0.7 and 2.1.1 allow remote attackers to inject arbitrary web script or HTML via the (1) fields[website] parameter in the post comments feature in articles/a-primer-to-symphony-2s-default-theme/ or (2) send-email[recipient] parameter to about/. NOTE: some of these details are obtained from third party information.

Directory traversal vulnerability in index.php in Symphony CMS 2.0.7 allows remote attackers to read arbitrary files and possibly have unspecified other impact via a .. (dot dot) in the mode parameter.