CVE-2026-76635baserCMS < 5.3.0 SQL Injection and Code Injection via BcDatabaseService.php

Description

baserCMS before 5.3.0 contains a SQL injection vulnerability in BcDatabaseService.php that allows authenticated administrators to inject attacker-controlled table names and configuration values directly into SQL statements across sequence update, CSV export, and table management operations. Attackers can chain a backup restore code injection flaw, where PHP code outside class definitions in schema files executes unconditionally upon loading, to plant malicious table names and trigger error-based SQL injection that retrieves database version, schema contents, and arbitrary data from the PostgreSQL backend.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• GitHub Security Advisory (GHSA-cg65-f2m7-9fqj) vendor-advisory
• baserCMS 5.3.0 Release Notes release-notes
• https://www.vulncheck.com/advisories/basercms-sql-injection-and-code-injection-via-bcdatabaseservice-php third-party-advisory