In the module “Opimized combinations” (aioptimizedcombinations) for PrestaShop, an attacker can perform a SQL injection up to 0.1.2. Release 0.1.3 fixed this security issue.


  • CVE ID: CVE-2023-33666
  • Published at: 2023-08-03
  • Advisory source:
  • Platform: PrestaShop
  • Product: aioptimizedcombinations
  • Impacted release: <= 0.1.2 (0.1.3 fixed issue)
  • Product author: ai-dev
  • Weakness: CWE-89
  • Severity: critical (9.8)


Up to 0.1.3, a sensitive SQL call in file 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/aioptimizedcombinations/includes/ajax.php
+++ b/modules/aioptimizedcombinations/includes/ajax.php
switch (Tools::getValue('action'))
	case 'getCombination' :
		/* If no product or combination, we quit */
		if (!Tools::getIsset('product') || !Tools::getIsset('attributes'))

		$attributes = explode(',', Tools::getValue('attributes'));
		/* Get combination id */
		$combination_data = Db::getInstance()->getRow(
			'SELECT COUNT(*) as number, pa.id_product_attribute FROM '._DB_PREFIX_.'product_attribute AS pa LEFT JOIN '._DB_PREFIX_.'product_attribute_combination AS pac ON pa.id_product_attribute = pac.id_product_attribute WHERE pa.id_product = '.
-			(int)Tools::getValue('product').' AND pac.id_attribute IN ('.pSQL(Tools::getValue('attributes')).') GROUP BY pa.id_product_attribute HAVING number = '.count($attributes)
+			(int)Tools::getValue('product').' AND pac.id_attribute IN ('.implode(',', array_map('intval', explode(',', Tools::getValue('attributes')))).') GROUP BY pa.id_product_attribute HAVING number = '.count($attributes)

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
2023-05-12 Request a CVE ID
2023-08-03 Publication of this advisory