An issue in Prestashop v.8.1.7 and before allows a remote attacker to execute arbitrary code via the module upgrade functionality. NOTE: this is disputed by multiple parties, who report that exploitation requires that an attacker be able to hijack network requests made by an admin user (who, by design, is allowed to change the code that is running on the server).

PrestaShop is an open-source e-commerce platform. Prior to version 8.1.3, the isCleanHtml method is not used on this this form, which makes it possible to store a cross-site scripting payload in the database. The impact is low because the HTML is not interpreted in BO, thanks to twig's escape mechanism. In FO, the cross-site scripting attack is effective, but only impacts the customer sending it, or the customer session from which it was sent. This issue affects those who have a module fetching these messages from the DB and displaying it without escaping HTML. Version 8.1.3 contains a patch for this issue.

PrestaShop is an open-source e-commerce platform. Prior to versions 8.1.3 and 1.7.8.11, some event attributes are not detected by the `isCleanHTML` method. Some modules using the `isCleanHTML` method could be vulnerable to cross-site scripting. Versions 8.1.3 and 1.7.8.11 contain a patch for this issue. The best workaround is to use the `HTMLPurifier` library to sanitize html input coming from users. The library is already available as a dependency in the PrestaShop project. Beware though that in legacy object models, fields of `HTML` type will call `isCleanHTML`.

PrestaShop is an Open Source e-commerce web application. In the Prestashop Back office interface, an employee can list all modules without any access rights: method `ajaxProcessGetPossibleHookingListForModule` doesn't check access rights. This issue has been addressed in commit `15bd281c` which is included in version 8.1.2. Users are advised to upgrade. There are no known workaround for this issue.

PrestaShop is an Open Source e-commerce web application. In affected versions any module can be disabled or uninstalled from back office, even with low user right. This allows low privileged users to disable portions of a shops functionality. Commit `ce1f6708` addresses this issue and is included in version 8.1.2. Users are advised to upgrade. There are no known workarounds for this issue.

PrestaShop is an open source e-commerce web application. Prior to version 8.1.1, it is possible to delete files from the server via the CustomerMessage API. Version 8.1.1 contains a patch for this issue. There are no known workarounds.

PrestaShop is an open source e-commerce web application. Prior to version 8.1.1, it is possible to delete a file from the server by using the Attachments controller and the Attachments API. Version 8.1.1 contains a patch for this issue. There are no known workarounds.

PrestaShop is an open source e-commerce web application. Prior to version 8.1.1, the `displayAjaxEmailHTML` method can be used to read any file on the server, potentially even outside of the project if the server is not correctly configured. Version 8.1.1 contains a patch for this issue. There are no known workarounds.

PrestaShop is an open source e-commerce web application. Versions prior to 1.7.8.10, 8.0.5, and 8.1.1 are vulnerable to cross-site scripting through the `isCleanHTML` method. Versions 1.7.8.10, 8.0.5, and 8.1.1 contain a patch. There are no known workarounds.

PrestaShop is an open source e-commerce web application. Versions prior to 1.7.8.10, 8.0.5, and 8.1.1 are vulnerable to remote code execution through SQL injection and arbitrary file write in the back office. Versions 1.7.8.10, 8.0.5, and 8.1.1 contain a patch. There are no known workarounds.

PrestaShop is an open source e-commerce web application. Prior to version 8.1.1, in the back office, files can be compromised using path traversal by replaying the import file deletion query with a specified file path that uses the traversal path. Version 8.1.1 contains a patch for this issue. There are no known workarounds.

PrestaShop is an open source e-commerce web application. Prior to version 8.1.1, SQL injection possible in the product search field, in BO's product page. Version 8.1.1 contains a patch for this issue. There are no known workarounds.

A SQL injection vulnerability in the Boxtal (envoimoinscher) module for PrestaShop, after version 3.1.10, allows remote attackers to execute arbitrary SQL commands via the `key` GET parameter.

In the PrestaShop < 2.4.3 module "Length, weight or volume sell" (ailinear) there is a SQL injection vulnerability.

PrestaShop is an Open Source e-commerce web application. Versions prior to 8.0.4 and 1.7.8.9 contain a SQL filtering vulnerability. A BO user can write, update, and delete in the database, even without having specific rights. PrestaShop 8.0.4 and 1.7.8.9 contain a patch for this issue. There are no known workarounds.

PrestaShop is an Open Source e-commerce web application. Prior to versions 8.0.4 and 1.7.8.9, the `ValidateCore::isCleanHTML()` method of Prestashop misses hijackable events which can lead to cross-site scripting (XSS) injection, allowed by the presence of pre-setup `@keyframes` methods. This XSS, which hijacks HTML attributes, can be triggered without any interaction by the visitor/administrator, which makes it as dangerous as a trivial XSS attack. Contrary to other attacks which target HTML attributes and are triggered without user interaction (such as onload / onerror which suffer from a very limited scope), this one can hijack every HTML element, which increases the danger due to a complete HTML elements scope. Versions 8.0.4 and 1.7.8.9 contain a fix for this issue.

PrestaShop is an Open Source e-commerce web application. Prior to versions 8.0.4 and 1.7.8.9, it is possible for a user with access to the SQL Manager (Advanced Options -> Database) to arbitrarily read any file on the operating system when using SQL function `LOAD_FILE` in a `SELECT` request. This gives the user access to critical information. A patch is available in PrestaShop 8.0.4 and PS 1.7.8.9

PrestaShop is an open source e-commerce web application that, prior to version 8.0.1, is vulnerable to cross-site request forgery (CSRF). When authenticating users, PrestaShop preserves session attributes. Because this does not clear CSRF tokens upon login, this might enable same-site attackers to bypass the CSRF protection mechanism by performing an attack similar to a session-fixation. The problem is fixed in version 8.0.1.

PrestaShop is an open-source e-commerce solution. Versions prior to 1.7.8.8 did not properly restrict host filesystem access for users. Users may have been able to view the contents of the upload directory without appropriate permissions. This issue has been addressed and users are advised to upgrade to version 1.7.8.8. There are no known workarounds for this issue.

PrestaShop is an Open Source e-commerce platform. In versions from 1.6.0.10 and before 1.7.8.7 PrestaShop is subject to an SQL injection vulnerability which can be chained to call PHP's Eval function on attacker input. The problem is fixed in version 1.7.8.7. Users are advised to upgrade. Users unable to upgrade may delete the MySQL Smarty cache feature.