In the module “Sendinblue - All-in-one marketing tool” (sendinblue) up to versions 4.0.14 from Sendinblue for PrestaShop, an anonymous user can perform SQL injection in affected versions if double optin is enabled. 4.0.15 fixed vulnerabilities.


  • CVE ID: CVE-2023-26859
  • Published at: 2023-07-25
  • Advisory source:
  • Platform: PrestaShop
  • Product: sendinblue
  • Impacted release: <= 4.0.14 (4.0.15 fixed the vulnerability)
  • Product author: Sendinblue
  • Weakness: CWE-89
  • Severity: high (8.1)


In sendinblue module for PrestaShop up to 4.0.14, a sensitive SQL call on ajaxOrderTracking.php can be executed with a trivial http call and exploited to forge a blind SQL injection throught for instance the POST or GET submitted id_shop_group variable if the double optin option is set.

WARNING : be warn that this module construct its token on PS_SHOP_NAME which is a bad practice since we have at least one other module in the ecosystem which expose this token on front. This is why we consider “Privilege required” to NONE instead of LOW.

CVSS base metrics

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

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

Possible malicious usage

  • Obtain admin access
  • Remove data from the associated PrestaShop
  • Copy/paste data from sensitive tables to FRONT to expose tokens and unlock admins’ ajax scripts
  • Rewrite SMTP settings to hijack emails


For PrestaShop 1.6, with sendinblue version 2.8.8, apply this patch:

--- a/modules/sendinblue/ajaxOrderTracking.php
+++ b/modules/sendinblue/ajaxOrderTracking.php
@@ -59,7 +59,7 @@ if ($sendin_order_track_status == 0) {
         $dateFormate = 'm-d-Y';
     $condition = '';
-    $id_shop_group = !empty($id_shop_group) ? $id_shop_group : 'NULL';
+    $id_shop_group = !empty($id_shop_group) ? (int) $id_shop_group : 'NULL';
     $id_shop = !empty($id_shop) ? $id_shop : 'NULL';
     if ($id_shop === 'NULL' && $id_shop_group === 'NULL') {

For PrestaShop 1.7, with sendinblue version 4.x, remove all files ajaxXXX.php especially ajaxOrderTracking.php.

Other recommandations

  • It’s highly recommended to upgrade the module to the latest version or to delete the module if unused.
    • To help improve the security of your PrestaShop installation, we recommend upgrading to the latest version. One of the benefits of upgrading is that it will disable the use of multiquery executions (separated by semicolons). However, please be aware that this will not protect your shop against SQL injection attacks that use the UNION clause to steal data. Additionally, it’s important to note that PrestaShop includes a function called pSQL, which includes a strip_tags function. This helps protect your shop against Stored XSS (also known as XSS T2) of Category 1. If a pSQL function is missing, it could potentially expose your project to critical Stored XSS vulnerabilities due to edge cases. Therefore, it’s crucial to ensure that all relevant functions are properly implemented and used consistently throughout your project.
  • 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
2022-12-02 Issue discovered during a code reviews by 202 ecommerce
2022-12-02 Contact the author
2023-12-19 First fixed candidate from the author 4.0.15 for PrestaShop 1.7. PrestShop 1.6 remain vulnerable
2022-12-19 Contact the author to fix others vulnerabilities
2023-01-31 Contact PrestaShop team to claim a fix on all available package downloadable
2023-02-12 Request a CVE ID
2023-07-23 Publication of the CVE