CVE-2026-39552
PHP Local File Inclusion in Blueprint
Publication date: 2026-06-02
Last updated on: 2026-06-02
Assigner: Patchstack
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| code_supply_co | blueprint | to 1.1.5 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-98 | The PHP application receives input from an upstream component, but it does not restrict or incorrectly restricts the input before its usage in "require," "include," or similar functions. |
Attack-Flow Graph
AI Powered Q&A
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
This Local File Inclusion (LFI) vulnerability allows unauthenticated attackers to include local files on the target server, potentially exposing sensitive data such as database credentials and leading to full database compromise.
Exposure of sensitive data due to this vulnerability could lead to non-compliance with data protection regulations like GDPR and HIPAA, which require safeguarding personal and sensitive information against unauthorized access.
Therefore, if exploited, this vulnerability may result in violations of these standards by compromising confidentiality, integrity, and availability of protected data.
Can you explain this vulnerability to me?
CVE-2026-39552 is a Local File Inclusion (LFI) vulnerability in the WordPress Blueprint Theme versions prior to 1.1.5. It arises from improper control of filenames used in include or require statements in PHP, allowing unauthenticated attackers to include local files on the target server.
This flaw is categorized under OWASP Top 10 A3: Injection and can be exploited without any privileges or user interaction.
How can this vulnerability impact me? :
Exploitation of this vulnerability can lead to exposure of sensitive data such as database credentials and may result in full database compromise.
Because the vulnerability allows unauthenticated attackers to include local files, it poses a high risk and can be used in mass campaigns targeting thousands of websites.
How can this vulnerability be detected on my network or system? Can you suggest some commands?
This vulnerability allows unauthenticated attackers to include local files on the target server, which can be detected by monitoring for suspicious HTTP requests that attempt to exploit Local File Inclusion (LFI) flaws.
You can detect potential exploitation attempts by searching web server logs for requests containing suspicious include or require parameters referencing local files.
- Use grep or similar tools to search access logs for suspicious patterns, for example: grep -iE "(include|require|file=)" /var/log/apache2/access.log
- Look for URL parameters that include directory traversal sequences such as ../ which are commonly used in LFI attacks: grep -r "\.\./" /var/log/apache2/access.log
- Monitor for unexpected PHP warnings or errors in server error logs that may indicate attempted file inclusions.
What immediate steps should I take to mitigate this vulnerability?
Immediate mitigation involves updating the WordPress Blueprint Theme to version 1.1.5 or later, which contains the fix for this Local File Inclusion vulnerability.
If updating is not immediately possible, apply Patchstack's mitigation rule to block attacks targeting this vulnerability until the update can be performed.
Additionally, restrict access to vulnerable endpoints and monitor for suspicious activity to reduce the risk of exploitation.