CVE-2026-28092
Local File Inclusion Vulnerability in ThemeREX Sounder
Publication date: 2026-03-05
Last updated on: 2026-03-05
Assigner: Patchstack
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| themerex | sounder | to 1.3.11 (inc) |
| themerex | sounder | From 1.0.0 (inc) to 1.3.11 (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-2026-28092 is a Local File Inclusion (LFI) vulnerability in the WordPress Sounder Theme versions up to and including 1.3.11. It allows unauthenticated attackers to include and display local files from the target website by exploiting improper control of filenames in PHP include/require statements.
This means an attacker can access sensitive files on the server, such as configuration files or database credentials, by tricking the application into loading these files.
How can this vulnerability impact me? :
[{'type': 'paragraph', 'content': "Exploitation of this vulnerability can lead to exposure of sensitive information, including database credentials, which may allow an attacker to take over the website's database."}, {'type': 'paragraph', 'content': "Depending on the website's configuration, this could result in a complete database takeover, compromising the confidentiality, integrity, and availability of the website and its data."}] [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': 'This vulnerability allows unauthenticated attackers to include local files from the target website and display their contents. Detection can involve monitoring for unusual HTTP requests attempting to include local files via the ThemeREX Sounder theme endpoints.'}, {'type': 'paragraph', 'content': 'You can look for suspicious URL patterns that attempt to exploit Local File Inclusion (LFI), such as requests containing parameters with file paths or directory traversal sequences (e.g., ../).'}, {'type': 'list_item', 'content': 'Use web server access logs to search for requests with suspicious parameters, for example using grep:'}, {'type': 'list_item', 'content': 'grep -iE "(\\.|%2e){2,}" /var/log/apache2/access.log'}, {'type': 'list_item', 'content': 'Use tools like curl or wget to test if the theme is vulnerable by attempting to include local files in parameters.'}, {'type': 'list_item', 'content': 'Monitor for unexpected file inclusion errors or warnings in PHP error logs.'}] [1]
What immediate steps should I take to mitigate this vulnerability?
Since no official patch is currently available for the affected Sounder theme versions (up to 1.3.11), immediate mitigation is critical.
Patchstack has issued a mitigation rule to block attacks exploiting this vulnerability. Applying this mitigation rule is recommended until an official patch can be safely applied.
- Implement web application firewall (WAF) rules to block requests attempting Local File Inclusion.
- Restrict access to sensitive files and directories on the server.
- Monitor and audit logs for suspicious activity related to file inclusion attempts.
- Consider disabling or removing the vulnerable theme if immediate mitigation is not possible.