Multiple PHP remote file inclusion vulnerabilities in b2evolution allow remote attackers to execute arbitrary PHP code via a URL in the (1) inc_path parameter to (a) a_noskin.php, (b) a_stub.php, (c) admin.php, (d) contact.php, (e) default.php, (f) index.php, and (g) multiblogs.php in blogs/; the (2) view_path and (3) control_path parameters to blogs/admin.php; and the (4) skins_path parameter to (h) blogs/contact.php and (i) blogs/multiblogs.php. NOTE: this issue is disputed by CVE, since the inc_path, view_path, control_path, and skins_path variables are all initialized in conf/_advanced.php before they are used

b2evolution 3.3.3 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 locales/ru_RU/ru-RU.locale.php and certain other files.

SQL injection vulnerability in blogs/htsrv/viewfile.php in b2evolution 4.1.3 allows remote authenticated users to execute arbitrary SQL commands via the root parameter.

Cross-site scripting (XSS) vulnerability in blogs/blog1.php in b2evolution 4.1.3 allows remote attackers to inject arbitrary web script or HTML via the message body.

SQL injection vulnerability in blogs/admin.php in b2evolution before 4.1.7 allows remote authenticated administrators to execute arbitrary SQL commands via the show_statuses[] parameter. NOTE: this can be leveraged using CSRF to allow remote unauthenticated attackers to execute arbitrary SQL commands.

Cross-site request forgery (CSRF) vulnerability in blogs/admin.php in b2evolution before 4.1.7 allows remote attackers to hijack the authentication of administrators for requests that conduct SQL injection attacks via the show_statuses[] parameter, related to CVE-2013-2945.

Cross-site scripting (XSS) vulnerability in the filemanager in b2evolution before 5.2.1 allows remote attackers to inject arbitrary web script or HTML via the fm_filter parameter to blogs/admin.php.

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.

Cross-site scripting (XSS) vulnerability in b2evolution 6.7.5 and earlier allows remote authenticated users to inject arbitrary web script or HTML via the site name.

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

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

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.

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.

Multiple cross-site scripting (XSS) vulnerabilities in the file types table in b2evolution through 6.8.3 allow remote authenticated users to inject arbitrary web script or HTML via a .swf file in a (1) comment frame or (2) avatar frame.

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 plugins/markdown_plugin/_markdown.plugin.php in b2evolution before 6.8.5 allows remote authenticated users to inject arbitrary web script or HTML via a javascript: URL.

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.

Stored XSS in b2evolution CMS version 6.11.6 and prior allows an attacker to perform malicious JavaScript code execution via the plugin name input field in the plugin module.

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.

b2evolution CMS v7.2.3 was discovered to contain a Cross-Site Request Forgery (CSRF) via the User login page. This vulnerability allows attackers to escalate privileges.

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.

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.

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."