Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in StylemixThemes Motors motors-car-dealership-classified-listings allows Stored XSS.This issue affects Motors: from n/a through 1.4.128.

Missing Authorization vulnerability in StylemixThemes Motors motors-car-dealership-classified-listings allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Motors: from n/a through 1.4.128.

The Motors – Car Dealership & Classified Listings Plugin plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the stmlistingsajaxsaveuserdata function in all versions up to, and including, 1.4.125 This makes it possible for authenticated attackers, with subscriber-level access and above, to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). Although deletion is bounded to wp-content/uploads (preventing removal of wp-config.php), any authenticated Subscriber can trivially exploit this because the required AJAX nonce is printed on every front-end page and the handler's stmuseravatarpath meta is writable by any logged-in user against their own account.

Missing Authorization vulnerability in StylemixThemes Motors motors-car-dealership-classified-listings allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Motors: from n/a through 1.4.128.

Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in StylemixThemes MasterStudy LMS masterstudy-lms-learning-management-system allows Code Injection.This issue affects MasterStudy LMS: from n/a through 3.7.56.

The Motors – Car Dealership & Classified Listings Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'stmfs[make]' parameter in all versions up to, and including, 1.4.128 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This requires the Free Listing Submission feature to be enabled, which is shipped on by default via the Setup Wizard demo configuration.

The Motors – Car Dealership & Classified Listings Plugin plugin for WordPress is vulnerable to File Deletion in all versions up to, and including, 1.4.128 The vulnerability exists because stmsaveuserextrafields(), hooked to personaloptionsupdate, writes the attacker-controlled stmdealerlogopath parameter directly to user meta without an ownership check binding the submitted path to the submitting user — unlike the stmpaymentstatus and stmlostpasswordhash fields, this field is not gated by a manageoptions or editusers capability check. This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete image files belonging to other users under wp-content/uploads — including other users' avatars, dealer logos, and uploaded media — by storing a crafted path via their own profile and then triggering unlink() through the become-dealer form on their author page. Note that the two path guards (stmmvlispathwithinuploads and stmmvlisallowedimagefile) do restrict the attack surface to files with an image extension that resolve within the uploads basedir; files outside that directory, such as wp-config.php or plugin PHP files, cannot be reached.

MasterStudy LMS plugin for WordPress before 3.7.50 contains a missing authorization vulnerability that allows any authenticated user, including Subscribers, to trigger the stmlmssendtestemailajax AJAX action without capability or nonce validation. Attackers can invoke this handler directly or via cross-site request forgery to cause an uncaught PHP fatal error that, when displayerrors is enabled, discloses the absolute filesystem path of the plugin.

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in StylemixThemes Motors motors-car-dealership-classified-listings allows Blind SQL Injection.This issue affects Motors: from n/a through 1.4.126.

The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.55 does not verify that a user targeted through its student-enrolment feature has any relationship to the requesting instructor, allowing users with the Instructor role to overwrite the first name, last name and public display name of any registered user on the site, including administrators, enabling impersonation and phishing.

Unauthenticated SQL Injection in uListing <= 2.2.0 versions.

Missing Authorization vulnerability in StylemixThemes Motors motors allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Motors: from n/a through 1.4.108.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in StylemixThemes MasterStudy LMS masterstudy-lms-learning-management-system allows Stored XSS.This issue affects MasterStudy LMS: from n/a through 3.7.52.

Insertion of Sensitive Information Into Sent Data vulnerability in StylemixThemes Motors allows Retrieve Embedded Sensitive Data.

This issue affects Motors: from n/a through 1.4.124.

Insertion of Sensitive Information Into Sent Data vulnerability in StylemixThemes Cost Calculator Builder cost-calculator-builder allows Retrieve Embedded Sensitive Data.This issue affects Cost Calculator Builder: from n/a through 4.0.17.

The Motors WordPress plugin before 1.4.124 does not properly verify that a user is authorised to modify a listing before processing one of its listing management actions, allowing authenticated attackers with subscriber-level access and above to set metadata on posts they do not own, including overwriting product prices. Exploitation is possible only when WooCommerce is active and the Motors WordPress plugin before 1.4.124's paid featured-listing option is enabled, neither of which is a default configuration.

The Motors – Car Dealership & Classified Listings Plugin plugin for WordPress is vulnerable to time-based blind SQL Injection via the 'stmlat/stmlng' parameter in all versions up to, and including, 1.4.109 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

The MasterStudy LMS WordPress plugin from 1.9 before 3.7.50 does not verify that a course a member asks to enrol in is covered by their membership plan, nor that the plan identifier submitted with the request is one they actually hold, allowing any member to enrol themselves into restricted paid courses outside their plan and beyond the number of courses it entitles them to.

The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not validate one of its display-style settings before using it to build a template path, allowing users with the Contributor role and above to include and execute arbitrary local PHP files on the server. An equivalent path was corrected in an earlier release and this one was not, so the issue persists in versions the earlier advisory reports as fixed.

The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not perform any capability or nonce checks on an administrative maintenance action, allowing any authenticated user, such as a subscriber, to trigger it and create published content on the site attributed to their own account.

The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not check whether user registration is enabled on the site before creating an account through one of its front-end registration flows, allowing unauthenticated users to create accounts, and be logged into them, on sites where registration has been deliberately disabled.

The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not verify that a user is enrolled in a course before recording lesson completions against it, allowing any authenticated user, such as a subscriber, to create course progress records for courses they have no access to.

The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not properly sanitise and restrict HTML in user-submitted content before storing it and rendering it to other users, allowing users with subscriber-level accounts and above to perform stored HTML injection, such as embedding iframes, that can be leveraged for phishing and content spoofing against other users viewing the content.

Missing Authorization vulnerability in StylemixThemes Motors motors allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Motors: from n/a before 5.6.85.

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in StylemixThemes Motors motors-car-dealership-classified-listings allows Blind SQL Injection.This issue affects Motors: from n/a through 1.4.109.

Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in StylemixThemes Motors allows PHP Local File Inclusion.

This issue affects Motors: from n/a through 1.4.109.

Missing Authorization vulnerability in StylemixThemes MasterStudy LMS Pro allows Accessing Functionality Not Properly Constrained by ACLs.

This issue affects MasterStudy LMS Pro: from n/a before 4.7.16.

The Motors – Car Dealership & Classified Listings plugin for WordPress is vulnerable to Payment Bypass via insecure user meta update in all versions up to, and including, 1.4.103 This is due to the stmsaveuserextrafields() function updating sensitive user meta fields from POST data without verifying that the current user should have permission to modify those fields. The function hooks into the 'personaloptionsupdate' action and only checks currentusercan('edituser', $userid), which passes for any user editing their own profile. This makes it possible for authenticated attackers, with Subscriber-level access and above, to set their stmpaymentstatus to 'completed', bypassing the PayPal payment verification and gaining access to paid Dealer membership features without completing any transaction.

The MasterStudy LMS WordPress Plugin for Online Courses and Education plugin for WordPress is vulnerable to Time-based Blind SQL Injection via the 'order' and 'orderby' parameters in the /lms/stm-lms/order/items REST API endpoint in versions up to and including 3.7.25. This is due to insufficient input sanitization combined with a design flaw in the custom Query builder class that allows unquoted SQL injection in ORDER BY clauses. When the Query builder detects parentheses in the sortby parameter, it treats the value as a SQL function and directly concatenates it into the ORDER BY clause without any quoting. While escsql() is applied to escape quotes and backslashes, this cannot prevent ORDER BY injection when the values themselves are not wrapped in quotes in the resulting SQL statement. This makes it possible for authenticated attackers, with subscriber-level access and above, to append arbitrary SQL queries via the ORDER BY clause to extract sensitive information from the database including user credentials, session tokens, and other confidential data through time-based blind SQL injection techniques.

The Cost Calculator Builder plugin for WordPress is vulnerable to Unauthenticated Payment Status Bypass in all versions up to, and including, 3.6.9 only when used in combination with Cost Calculator Builder PRO. This is due to the completepayment AJAX action being registered via wpajaxnopriv, making it accessible to unauthenticated users, and the complete() function only verifying a nonce without checking user capabilities or order ownership. Since nonces are exposed to all visitors via window.ccbnonces in the page source, any unauthenticated attacker can mark any order's payment status as "completed" without actual payment.