CVE-2025-51656: sem-cms semcms SQL Injection

Vulnerability summary

CVE-2025-51656 is a medium (CVSS 5.4) SQL Injection vulnerability in sem-cms semcms. EPSS estimates a 0.26% chance of exploitation in the next 30 days, higher than 16.6% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 14-07-2025
   PublishedVulnerability first disclosed.
2. 05-07-2026
   Last modifiedVulnerability information updated.

Description

SemCms v5.0 was discovered to contain a SQL injection vulnerability via the ID parameter at SEMCMS_Link.php.

• CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.