In the module “XML Feeds PRO” (xmlfeeds) up to versions 3.8.2 from Bl Modules for PrestaShop, a guest can perform SQL injection in affected versions.


  • CVE ID: CVE-2023-39643
  • Published at: 2023-08-29
  • Platform: PrestaShop
  • Product: xmlfeeds
  • Impacted release: <= 3.8.2 (3.9.8 fixed the vulnerability)
  • Product author: Bl Modules
  • Weakness: CWE-89
  • Severity: critical (9.8)


The method SearchApiXml::Xmlfeeds() has sensitive SQL calls that can be executed with a trivial http call and exploited to forge a SQL injection.

WARNING : This exploit is actively used to deploy a webskimmer to massively steal credit cards.

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

  • 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

Proof of concept

curl -v 'https://preprod.X/modules/xmlfeeds/search.php?s=1&s_p=1);select(0x73656C65637420736C656570283432293B)INTO@a;prepare`b`from@a;execute`b`;--'

Patch from 3.8.2

--- 3.8.2/modules/xmlfeeds/xmlfeeds.php
+++ 3.9.8/modules/xmlfeeds/xmlfeeds.php
$moduleImgPath = '../modules/xmlfeeds/views/img/';

        if (!empty($selected_products) && $selected_products != 'undefined') {
-           $where_selected = ' AND l.id_product NOT IN ('.$selected_products.')';
+           $where_selected = ' AND l.id_product NOT IN ('.implode(',', array_map('intval', explode(',', $selected_products))).')';

Other recommendations

  • It’s recommended to upgrade to the latest version of the module xmlfeeds.
  • Upgrade PrestaShop to the latest version to disable multiquery executions (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_ with 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 this set of rules.


Date Action
2023-04-06 Issue discovered during a code review by
2023-04-06 Contact PrestaShop Addons security Team to confirm versions scope by author
2023-04-19 Request a CVE ID
2023-05-15 PrestaShop Addons security Team confirm versions scope
2023-08-25 Received CVE ID
2023-08-29 Publish this security advisory