e107 vulnerabilities

e107 version 2.1.1 allows SQL injection by remote authenticated administrators via the pagelist parameter to e107_admin/menus.php, related to the menuSaveVisibility function.

In e107 CMS prior to 2.3.7, install.php decodes the attacker-controlled previous_steps POST parameter and passes it to unserialize() at file scope and again in the e_install constructor without restricting allowed classes. The installer remains accessible after a normal installation, and a crafted object graph using the bundled GuzzleHttp\Psr7\PumpStream class can flow through paths.hash into site_path, where string coercion invokes an attacker-controlled callable. An unauthenticated attacker who can reach install.php can therefore execute arbitrary PHP functions with the web server process's privileges, leading to full server compromise.

In e107 CMS prior to 2.3.7, the bundled alt_auth plugin's otherdb and e107db authentication backends interpolate the submitted login username directly into SQL in e107_plugins/alt_auth/otherdb_auth.php and e107_plugins/alt_auth/e107db_auth.php. The login() methods execute those strings with PDO::query() before effective sanitization, so an unauthenticated user can inject SQL when alt_auth is installed and either backend is configured with a live external database connection. The injection can expose or modify data available to the configured database account, and query failures can additionally disclose the generated query through the debug-message path.

An SQL injection vulnerability in e107 2.4.0 allows unauthenticated remote attackers to execute arbitrary SQL via the news item page ID parameter. The parameter is concatenated without escaping into a SQL WHERE clause.

e107 prior to version 2.3.8 contains a code execution vulnerability in the e_array deserialization handler. An attacker with database write access can store a crafted payload in the user_prefs column, which upon materialization of user preferences is passed to eval(), leading to automatic execution of arbitrary PHP code.

e107 CMS prior to version 2.3.4 allows access to the local environment by specifying a local URL in the "Image/File URL:" field of the "From a remote location" option in the Media Manager on the admin screen. This vulnerability is fixed in version 2.3.4.

In e107 before 2.3.4, a Host Header Injection vulnerability in the password reset page allows attackers to generate password reset links pointing to attacker-controlled domains.

e107 is a content management system (CMS). Prior to 2.3.4, a Broken Access Control vulnerability exists in the application, allowing an unauthorized authenticated user to edit comments posted by others. This stems from inadequate server-side access control validation, where the application depends only on a predictable identifier in the request to determine which comment to edit, without confirming the requesting user’s ownership of the comment.