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The SQL injection vulnerability in baserCMS exists within the blog post functionality due to improper handling of user-supplied input when constructing SQL queries. Specifically, parameters such as the blog post ID, category filters, or search keywords are passed directly into database queries without adequate sanitization. An attacker can inject malicious SQL syntax through these parameters, leveraging the application’s failure to use parameterized queries or prepared statements. The flaw is present in versions 5.2.2 and earlier, primarily affecting the `BlogPost` model and associated controllers that process blog-related requests. By crafting a specially designed request (e.g., a GET or POST parameter with SQL metacharacters), the attacker can alter the intended SQL query structure. This can lead to unauthorized data retrieval, bypass of access controls, and potentially execution of administrative operations. The injection vector is likely exploited through the blog list view, detail view, or management interfaces where blog data is filtered or sorted. Because baserCMS uses the CakePHP framework, the vulnerability likely stems from manual query construction using `query()` or raw conditions that bypass the ORM’s built-in protections. Successful exploitation yields the same privileges as the database user—typically read/write access to the CMS database. The issue was responsibly disclosed by Mirai Matsumoto of Future Secure Wave, Inc., and a patch was released that replaces unsafe query-building routines with proper parameter binding.
Platform: baserCMS
Version: 5.2.2 and earlier
Vulnerability: SQL Injection
Severity: Moderate
date: 2026-03-31
Prediction: Already patched (Mar 31, 2026)
What Undercode Say:
Check current baserCMS version via CLI (if accessible)
php app/console.php baser-core version
Verify if vulnerable query patterns exist in blog controllers
grep -r "BlogPost" app/Plugin/Blog/Controller/ | grep -E "query(|\$this->BlogPost->find('all'"
Example test payload using curl to probe SQLi on blog search
curl -X GET "https://target.example.com/blog/search?q=1' UNION SELECT SLEEP(5)-- -"
how Exploit:
- Identify a blog endpoint that accepts user input (e.g., search, category filter, or post ID).
- Inject SQL payloads like `’ OR ‘1’=’1` into the parameter to alter the query logic.
- Use union‑based or time‑based techniques to extract database contents, including admin credentials and configuration data.
Protection from this CVE
- Upgrade baserCMS to the latest version (5.2.3 or higher) that contains the fix.
- Ensure all database queries use prepared statements or the ORM’s safe methods (e.g., `find()` with conditions array).
- Apply input validation and output encoding for blog‑related parameters.
Impact
- Unauthorized reading of database records, including user accounts and sensitive content.
- Potential privilege escalation if the database user has administrative rights.
- Data integrity compromise through malicious UPDATE or DELETE operations.
- Complete takeover of the CMS in worst‑case scenarios.
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Sources:
Reported By: github.com
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