# CVE-2025-51656: SemCms SQL injection in SEMCMS_Link.php

Source: https://junglewise.ai/threats/cve-2025-51656-semcms-sql-injection-in-semcms-link-php  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-07-14. Updated: 2026-07-05  
License: CC BY 4.0 with a link back

CVE-2025-51656 · Severity: medium · CVSS 5.4 · Published 2025-07-14

SemCms, a content management system used for building e-commerce and corporate websites, contains a security flaw in its link management component. An attacker with basic user access can exploit this to gain unauthorized access to the underlying database. This could lead to the theft of sensitive business information or the modification of website content.

Technologies: [SEMCMS](https://junglewise.ai/threats/technologies/semcms). Vendors: [SEMCMS](https://junglewise.ai/threats/vendors/semcms).

## Quick answers

**Is CVE-2025-51656 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-51656 being exploited in the wild.

**How severe is CVE-2025-51656?** Medium severity, with a CVSS score of 5.4, published 14 July 2025.

**Which products and versions are affected?** SEMCMS <= 5.0.

**Is there a fix for CVE-2025-51656?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2025-51656 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2025-51656?** Check whether you run SEMCMS at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A SQL injection vulnerability exists in SemCms versions up to and including 5.0. The flaw is located in the 'ID' parameter within the SEMCMS_Link.php script. An attacker with low-privileged (authenticated) access can submit specially crafted SQL queries through this parameter because the application fails to properly neutralize special elements. Successful exploitation allows the attacker to execute arbitrary SQL commands, potentially leading to full database access or administrative (DBA) permissions. The vulnerability was disclosed with a proof-of-concept demonstrating the injection via the 'type=edit' action.

## Affected products

- SemCms SemCms <= 5.0

## Timeline

- 2025-07-14: advisory: NVD published the CVE record.

## References

- [https://github.com/Y4y17/CVE/blob/main/SemCms/SQL_Injection_5.md](https://github.com/Y4y17/CVE/blob/main/SemCms/SQL_Injection_5.md)
- [https://www.sem-cms.com/](https://www.sem-cms.com/)

## Related threats

- [SEMCMS SQL injection in SEMCMS_Banner.php](https://junglewise.ai/threats/cve-2026-108814-a-flaw-has-been-found-in-semcms-up-to-5-0-this-impacts-an)
- [SEMCMS improper authorization in user deletion](https://junglewise.ai/threats/cve-2026-108812-a-security-vulnerability-has-been-detected-in-semcms-up-to-5-0)
- [SEMCMS unauthenticated file upload in KindEditor interface](https://junglewise.ai/threats/cve-2026-96739-a-flaw-has-been-found-in-semcms-up-to-4-2-affected-by-this-issue)
- [SemCms CSRF in admin user management module](https://junglewise.ai/threats/cve-2026-39170-semcms-csrf-in-admin-user-management-module)
- [SEMCMS unauthenticated database export in SEMCMS_copy.php](https://junglewise.ai/threats/cve-2026-39169-semcms-unauthenticated-database-export-in-semcms-copy-php)