The Blog2Social – Social Media Auto Post & Scheduler WordPress plugin versions up to and including 9.1.4 contain an authorization bypass vulnerability. Authenticated users with Contributor-level access or higher can exploit insecure direct object references in AJAX handlers to read titles and content of posts they do not own, including private and pending posts.
The Blog2Social: Social Media Auto Post & Scheduler plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 9.1.0. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with contributor-level access and above, to view, modify, or delete other users' Blog2Social records, including disclosing another user's network authentication IDs and scheduled post content, overwriting Open Graph and Twitter Card post metadata on posts they do not own, rebinding another user's social-network authorization, and mass-hiding all users' scheduled posts sitewide. The plugin's b2s_security_nonce is emitted on the post-edit meta box, which Contributors can render, making the nonce available to any authenticated user at that role level or above.
The Blog2Social: Social Media Auto Post & Scheduler plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 8.9.0. This is due to a missing ownership verification in the B2S_Post_Tools::deleteUserPublishPost() and B2S_Post_Tools::deleteUserSchedPost() functions, neither function includes a blog_user_id constraint in its database query, allowing authenticated attackers to soft-delete any user's B2S post records by supplying arbitrary sequential wp_b2s_posts.id values via the 'postId' parameter. This makes it possible for authenticated attackers to delete other users' published and scheduled social media post records, disrupting content publishing workflows.
The Blog2Social: Social Media Auto Post & Scheduler WordPress plugin up to version 8.8.3 contains an authorization bypass vulnerability. This occurs because the plugin's AJAX handlers do not verify that the user-supplied 'b2s_id' parameter corresponds to the current user before allowing update or delete operations. As a result, authenticated users with Subscriber-level access or higher can modify, reschedule, or delete scheduled social media posts belonging to other users.
The Blog2Social: Social Media Auto Post & Scheduler plugin for WordPress is vulnerable to unauthorized data loss in all versions up to, and including, 8.8.2. This is due to the resetSocialMetaTags() function only verifying that the user has the 'read' capability and a valid b2s_security_nonce, both of which are available to Subscriber-level users, as the plugin grants 'blog2social_access' capability to all roles upon activation, allowing them to access the plugin's admin pages where the nonce is output. This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete all _b2s_post_meta records from the wp_postmeta table, permanently removing all custom social media meta tags for every post on the site.
The Blog2Social: Social Media Auto Post & Scheduler plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the b2s_curation_draft AJAX action in all versions up to, and including, 8.7.4. The curationDraft() function only verifies current_user_can('read') without checking whether the user has edit_post permission for the target post. Combined with the plugin granting UI access and nonce exposure to all roles, this makes it possible for authenticated attackers, with Subscriber-level access and above, to overwrite the title and content of arbitrary posts and pages by supplying a target post ID via the 'b2s-draft-id' parameter.
The Blog2Social: Social Media Auto Post & Scheduler plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 8.7.2. This is due to a misconfigured authorization check on the 'getShipItemFullText' function which only verifies that a user has the 'read' capability (Subscriber-level) and a valid nonce, but fails to verify whether the user has permission to access the specific post being requested. This makes it possible for authenticated attackers, with Subscriber-level access and above, to extract data from password-protected, private, or draft posts.
The Blog2Social: Social Media Auto Post & Scheduler plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'deleteUserCcDraftPost' function in all versions up to, and including, 8.7.0. This makes it possible for authenticated attackers, with Subscriber-level access and above, to change the status of arbitrary posts to trash.
The Blog2Social: Social Media Auto Post & Scheduler plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 8.6.0 via the getFullContent() function. This makes it possible for authenticated attackers, with Subscriber-level access and above, to make web requests to arbitrary locations originating from the web application and can be used to query and modify information from internal services.
The Blog2Social: Social Media Auto Post & Scheduler plugin for WordPress is vulnerable to limited file upload due to an incorrect capability check on theuploadVideo() function in all versions up to, and including, 8.6.0. This makes it possible for authenticated attackers, with Subscriber-level access and above, to upload mp4 files to the 'wp-content/uploads/<YYYY>/<MM>/' directory.
The Blog2Social: Social Media Auto Post & Scheduler plugin for WordPress is vulnerable to SQL Injection via the ‘prgSortPostType’ parameter in all versions up to, and including, 8.4.4 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with Subscriber-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
The Blog2Social: Social Media Auto Post & Scheduler plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 3gp2 file uploads in all versions up to, and including, 7.5.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses the 3gp2 file.
The Blog2Social: Social Media Auto Post & Scheduler plugin for WordPress is vulnerable to SQL Injection via the 'b2sSortPostType' parameter in all versions up to, and including, 7.4.1 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with subscriber-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
The Blog2Social: Social Media Auto Post & Scheduler plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 7.4.2. This makes it possible for unauthenticated attackers to view limited information from password protected posts.