Vulnerabilities

In b2evolution 7.2.5, if configured with admins_can_manipulate_sensitive_files, arbitrary file upload is allowed for admins, leading to command execution. NOTE: the vendor's position is that this is "very obviously a feature not an issue and if you don't like that feature it is very obvious how to disable it."

An authorization bypass in b2evolution allows remote, unauthenticated attackers to predict password reset tokens for any user through the use of a bad randomness function. This allows the attacker to get valid sessions for arbitrary users, and optionally reset their password. Tested and confirmed in a default installation of version 7.2.3. Earlier versions are affected, possibly earlier major versions as well.

b2evolution CMS v7.2.3 was discovered to contain a SQL injection vulnerability via the parameter cfqueryparam in the User login section. This vulnerability allows attackers to execute arbitrary code via a crafted input.

SQL Injection in the "evoadm.php" component of b2evolution v7.2.2-stable allows remote attackers to obtain sensitive database information by injecting SQL commands into the "cf_name" parameter when creating a new filter under the "Collections" tab.

Reflected cross-site scripting vulnerability (XSS) in the evoadm.php file in b2evolution cms version 6.11.6-stable allows remote attackers to inject arbitrary webscript or HTML code via the tab3 parameter.

Open redirect vulnerability in b2evolution CMS version prior to 6.11.6 allows an attacker to perform malicious open redirects to an attacker controlled resource via redirect_to parameter in email_passthrough.php.

b2evolution 6.7.6 suffer from an Object Injection vulnerability in /htsrv/call_plugin.php.

b2evolution version 6.6.0 - 6.8.10 is vulnerable to input validation (backslash and single quote escape) in basic install functionality resulting in unauthenticated attacker gaining PHP code execution on the victim's setup.

The patch for directory traversal (CVE-2017-5480) in b2evolution version 6.8.4-stable has a bypass vulnerability. An attacker can use ..\/ to bypass the filter rule. Then, this attacker can exploit this vulnerability to delete or read any files on the server. It can also be used to determine whether a file exists.

Cross-site scripting (XSS) vulnerability in b2evolution 6.7.5 and earlier allows remote attackers to inject arbitrary web script or HTML via vectors related to the autolink function.

Directory traversal vulnerability in inc/files/files.ctrl.php in b2evolution through 6.8.3 allows remote authenticated users to read or delete arbitrary files by leveraging back-office access to provide a .. (dot dot) in the fm_selected array parameter.

The "lost password" functionality in b2evolution before 6.7.9 allows remote attackers to reset arbitrary user passwords via a crafted request.