# CVE-2023-27034: jmsblog - SQLi

> Live exploitation tracking for CVE-2023-27034 by the CrowdSec Live Exploit Tracker, built from real-world attack data crowdsourced from CrowdSec's global network.

Page: https://tracker.crowdsec.net/cves/CVE-2023-27034

## Key facts

- **Exploitation phase:** Limited Exploitation. The vulnerability is known but shows very limited attacker interest or exploitation activity.
- **CVSS score:** 9.8
- **Public exploit available:** Yes
- **Affected products:** Joommasters jmsblog
- **Weaknesses:** CWE-89 (Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection'))
- **Tags:** ecommerce, php

## Description

PrestaShop jmsblog 2.5.5 was discovered to contain a SQL injection vulnerability.

## CrowdSec analysis

[CVE-2023-27034](https://euvd.enisa.europa.eu/vulnerability/CVE-2023-27034) is a critical SQL injection vulnerability found in PrestaShop jmsblog version 2.5.5. This flaw could allow remote attackers to execute arbitrary SQL commands, potentially leading to unauthorized access, data leakage, or full compromise of the affected database.

CrowdSec has been tracking this vulnerability and its exploits since 11th of February 2026.

CrowdSec has not observed any significant exploitation activity targeting CVE-2023-27034 across its network. As a result, no community-driven trend analysis is available for this vulnerability at this time.

Attackers exploit this vulnerability by sending crafted POST requests to `/module/jmsblog/index.php` with the `action=submitComment` parameter, injecting SQL payloads into the `email` field to trigger time-based SQL injection.

## Timeline

- 2023-03-23: CVE Published. CVE-2023-27034 is published to NVD.
- 2026-02-11: Rule Released. CrowdSec releases a rule to detect CVE-2023-27034 exploitation attempts against the CrowdSec Network.

## References

- https://friends-of-presta.github.io/security-advisories/modules/2023/03/13/jmsblog.html
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-27034.yaml

## Live exploitation data

The [Live Exploit Tracker page](https://tracker.crowdsec.net/cves/CVE-2023-27034) follows observed exploitation activity for CVE-2023-27034. [Request an API key](https://tracker.crowdsec.net/request-api-key) for full access to its exploitation timeline, attacking IP addresses and blocklists.