In the module “Combinations generated on fly for your store” (aicombinationsonfly) for PrestaShop, an attacker can perform SQL injection before 0.3.1. Release 0.3.1 fixed this security issue.


  • CVE ID: CVE-2023-33664
  • Published at: 2023-06-28
  • Advisory source:
  • Platform: PrestaShop
  • Product: aicombinationsonfly
  • Impacted release: < 0.3.1 (0.3.1 fixed the vulnerability)
  • Product author: ai-dev
  • Weakness: CWE-89
  • Severity: critical (9.8)


Up to 0.3.0, a sensitive SQL call in includes/ajax.php can be executed with a trivial http call and exploited to forge a blind SQL injection throught the POST or GET submitted attributes variables.

CVSS base metrics

  • Attack vector: network
  • Attack complexity: low
  • Privilege required: none
  • User interaction: none
  • Scope: unchanged
  • Confidentiality: high
  • Integrity: high
  • Availability: high

Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Possible malicious usage

  • Technical and personal data leaks
  • Obtain admin access
  • Remove all data of the linked PrestaShop
  • Display sensitives tables to front-office to unlock potential admin’s ajax scripts of modules protected by token on the ecosystem


--- a/modules/aicombinationsonfly/includes/ajax.php
+++ b/modules/aicombinationsonfly/includes/ajax.php
@@ -50,7 +50,7 @@ switch (Tools::getValue('action')) {
-        $attributes = array_map('intval', explode(',', Tools::getValue('attributes')));
+        $attributes = explode(',', Tools::getValue('attributes'));
         if ($combination_id = AiCombinationsOnFlyFunctions::createCombination((int)Tools::getValue('product'), $attributes, 0, 1, Tools::getValue('module'), $shop_id)) {
             /* Get data */
             $data = Db::getInstance()->getRow(

--- a/modules/aicombinationsonfly/includes/functions.php
+++ b/modules/aicombinationsonfly/includes/functions.php
    public static function createCombination($product_id, $values, $default_on = 0, $aicof_value = 0, $module = '', $shop_id = 0)
+       $values = array_map('intval', $values);
        //  If module is defined, change values if needed
        $combination_values = array();

Other recommandations

  • Upgrade PrestaShop to the latest version to disable multiquery execution (separated by “;”) - be warned that this functionality WILL NOT protect your SHOP against injection SQL which uses the UNION clause to steal data.
  • Change the default database prefix ps_ by a new longer arbitrary prefix. Nevertheless, be warned that this is useless against blackhats with DBA senior skills because of a design vulnerability in DBMS
  • Activate OWASP 942’s rules on your WAF (Web application firewall), be warned that you will probably break your backoffice and you will need to pre-configure some bypasses against these set of rules.


Date Action
2023-05-08 Vunlnerability found during a audit by 202 ecommerce
2023-05-10 Contact the author
2023-05-12 The author confirm the issue and supply a fixed release
2023-03-12 Request a CVE ID
2023-06-28 Publication of this advisory