CVE-2026-34228: Emlog: CSRF in Backend Upgrade Interface Leading to Arbitrary Remote SQL Execution and Arbitrary File Write
Emlog is an open source website building system. Prior to version 2.6.8, the backend upgrade interface accepts remote SQL and ZIP URLs via GET parameters. The server first downloads and executes the SQL file, then downloads the ZIP file and extracts it directly into the web root directory. This process does not validate a CSRF token. Therefore, an attacker only needs to trick an authenticated administrator into visiting a malicious link to achieve arbitrary SQL execution and arbitrary file write. This issue has been patched in version 2.6.8.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
emlogto a version that resolves this vulnerability.Fixed in 2.6.8 - Configuration
Ensure the backend upgrade interface validates a CSRF token instead of accepting remote SQL and ZIP URLs via GET parameters without CSRF protection.
Emlog backend upgrade interface CSRF token validation = enabled
Event History
Frequently Asked Questions
What is the severity of CVE-2026-34228?
CVE-2026-34228 has a high severity rating due to the potential for arbitrary remote SQL execution and file write vulnerabilities.
How do I fix CVE-2026-34228?
To fix CVE-2026-34228, upgrade your Emlog installation to version 2.6.8 or later immediately.
What versions of Emlog are affected by CVE-2026-34228?
CVE-2026-34228 affects all versions of Emlog prior to version 2.6.8.
Can CVE-2026-34228 lead to data breaches?
Yes, CVE-2026-34228 can lead to data breaches due to its ability to execute arbitrary SQL commands.
Is user input validation a concern with CVE-2026-34228?
Yes, the vulnerability stems from inadequate user input validation in the backend upgrade interface.