In the module “Theme Volty CMS Payment Icon” (tvcmspaymenticon) up to version 4.0.1 from Theme Volty for PrestaShop, a guest can perform SQL injection in affected versions.


  • CVE ID: CVE-2023-39645
  • Published at: 2023-09-26
  • Platform: PrestaShop
  • Product: tvcmspaymenticon
  • Impacted release: <= 4.0.1 (4.0.2 fixed the vulnerability)
  • Product author: Theme Volty
  • Weakness: CWE-89
  • Severity: critical (9.8)


The script ajax.php has sensitive SQL calls that can be executed with a trivial http call and exploited to forge a SQL injection.

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’s ajax scripts
  • Rewrite SMTP settings to hijack emails

Patch from 4.0.1

--- 4.0.1/tvcmspaymenticon/ajax.php
+++ 4.0.2/tvcmspaymenticon/ajax.php
        $update_position[] = 'UPDATE 
                                        `' . _DB_PREFIX_ . 'tvcmspaymenticon` 
-                                        `position` = ' . $pos . '
+                                        `position` = ' . (int) $pos . '
-                                        `id_tvcmspaymenticon` = ' . $value . ';';
+                                        `id_tvcmspaymenticon` = ' . (int) $value . ';';

Other recommendations

  • It’s recommended to upgrade to the latest version of the module tvcmspaymenticon.
  • 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
2023-02-10 Issue discovered during a code review by
2023-02-10 Contact PrestaShop Addons security Team to confirm versions scope by author
2023-02-15 Author provide a patch which still own all criticals vulnerabilities
2023-04-13 Recontact PrestaShop Addons security Team to confirm versions scope by author
2023-04-13 Request a CVE ID
2023-05-19 Author provide patch
2023-08-15 Received CVE ID
2023-09-26 Publish this security advisory