CVE-2026-22371
Local File Inclusion Vulnerability in Gustavo PHP Theme
Publication date: 2026-02-20
Last updated on: 2026-02-24
Assigner: Patchstack
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| ancorathemes | gustavo | to 1.2.2 (inc) |
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
Can you explain this vulnerability to me?
CVE-2026-22371 is a Local File Inclusion (LFI) vulnerability found in the WordPress Gustavo Theme versions up to and including 1.2.2.
This vulnerability allows an unauthenticated attacker to include and display local files from the target website by exploiting improper control of filename for include/require statements in PHP.
As a result, sensitive information such as database credentials can be exposed.
How can this vulnerability impact me? :
[{'type': 'paragraph', 'content': 'Exploitation of this vulnerability can lead to exposure of sensitive files on the server, including database credentials.'}, {'type': 'paragraph', 'content': "Depending on the website's configuration, an attacker could potentially take over the entire database."}, {'type': 'paragraph', 'content': 'This represents a high risk to the security and integrity of the affected website.'}] [1]
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
[{'type': 'paragraph', 'content': 'CVE-2026-22371 is a Local File Inclusion (LFI) vulnerability affecting the WordPress Gustavo Theme up to version 1.2.2. Detection typically involves monitoring for attempts to exploit the vulnerability by including local files via crafted HTTP requests.'}, {'type': 'paragraph', 'content': 'While no specific detection commands are provided, common methods to detect LFI attempts include analyzing web server logs for suspicious URL patterns that attempt to include local files, such as requests containing directory traversal sequences (e.g., ../) or attempts to access sensitive files like /etc/passwd.'}, {'type': 'paragraph', 'content': 'You can use commands like the following to search your web server logs for potential exploitation attempts:'}, {'type': 'list_item', 'content': "grep -i 'include' /var/log/apache2/access.log | grep '\\.\\./'"}, {'type': 'list_item', 'content': "grep -E '\\.\\./|etc/passwd|boot.ini' /var/log/nginx/access.log"}, {'type': 'paragraph', 'content': 'Additionally, deploying web application firewalls (WAFs) with rules targeting this vulnerability can help detect and block exploitation attempts.'}] [1]
What immediate steps should I take to mitigate this vulnerability?
Since no official patch is currently available for CVE-2026-22371, immediate mitigation involves applying the Patchstack mitigation rule designed to block attacks exploiting this Local File Inclusion vulnerability.
Users are strongly advised to promptly implement Patchstack’s mitigation measures to secure their websites until an official patch can be developed and safely applied.
Additional general mitigation steps include:
- Temporarily disabling or removing the Gustavo theme if possible.
- Restricting file permissions on the server to limit access to sensitive files.
- Monitoring web server logs for suspicious activity and blocking malicious IP addresses.