SmartDataSoft SmartBlog for PrestaShop - SQLi (CVE-2021-37538)

CVE-2021-37538 is a critical SQL injection vulnerability in SmartDataSoft SmartBlog for PrestaShop prior to version 4.06, allowing remote unauthenticated attackers to execute arbitrary SQL commands via multiple parameters. Exploitation of this flaw could lead to unauthorized access, data theft, or complete compromise of the underlying database.

CrowdSec has been tracking this vulnerability and its exploits since 10th of September 2025.

According to CrowdSec data, while opportunistic exploitation dominates, a portion of threat actors trying to exploit CVE-2021-37538 apply basic targeting methods such as port or service detection. This indicates emerging patterns of selective targeting. CrowdSec data also reveals a clear uptick in attacks involving CVE-2021-37538 over the past week. Activity is above the usual baseline, suggesting growing attention from attackers. This may reflect rising awareness, recent exploit releases, or expanded targeting efforts.

Attackers exploit the /module/smartblog/archive endpoint by injecting SQL commands into the month, year, or day parameters, often using UNION-based payloads to extract sensitive data from the database.