Database disclosure and code execution via backup restore
Published Aug 20, 2026 · Updated Aug 25, 2026
SQL injection in baserCMS before 5.3.0 allows remote authenticated users to read and alter database data through administrative operations. BcDatabaseService.php directly interpolates table names and database configuration values into six SQL statements, while loadSchema() uses require_once on backup schema files after a validator checks only class structure. Administrator access and a crafted backup restore are required to execute PHP outside a schema class, plant malicious table names, and trigger PostgreSQL error-based disclosure.
Summary
What happened
SQL injection in baserCMS before 5.3.0 allows remote authenticated users to read and alter database data through administrative operations. BcDatabaseService.php directly interpolates table names and database configuration values into six SQL statements, while loadSchema() uses require_once on backup schema files after a validator checks only class structure. Administrator access and a crafted backup restore are required to execute PHP outside a schema class, plant malicious table names, and trigger PostgreSQL error-based disclosure.
The record
- CVE
- CVE-2026-76635
- Published
- Aug 20, 2026
- Updated
- Aug 25, 2026
- Vendor
- baserCMS Users Community
- Product
- baserCMS
- Classifications
- CWE-89, CWE-94, T1190
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Aug 20, 2026CVE publishedPublication date reported by the CVE source.
- Aug 25, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <5.3.0
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- exploit_basercms_sqli.pyfunctional · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
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