CVE-2026-27987
Local File Inclusion Vulnerability in The Qlean ThemeREX
Publication date: 2026-03-05
Last updated on: 2026-03-06
Assigner: Patchstack
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| themerex | the_qlean | to 2.12 (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-2026-27987 is a Local File Inclusion (LFI) vulnerability in the WordPress Qlean Theme versions up to and including 2.12. It 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. This can lead to exposure of sensitive information such as database credentials.
How can this vulnerability impact me? :
[{'type': 'paragraph', 'content': "Exploitation of this vulnerability can lead to exposure of sensitive information from the website, including database credentials. Depending on the website's configuration, an attacker could potentially take over the entire database. This represents a high severity risk to the confidentiality and integrity of the affected system."}] [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?
This vulnerability allows an unauthenticated attacker to include and display local files from the target website, which can be detected by monitoring for suspicious HTTP requests attempting to include local files via the ThemeREX The Qlean theme.
While no specific detection commands are provided, users can look for unusual URL parameters or requests targeting the include/require functionality in the theme, which may indicate exploitation attempts.
Additionally, applying Patchstack’s mitigation rule can help block attacks targeting this vulnerability and can be used as a detection mechanism by logging blocked attempts.
What immediate steps should I take to mitigate this vulnerability?
Since no official patch is currently available for the theme, the immediate recommended step is to apply Patchstack’s mitigation rule to block attacks targeting this vulnerability.
Applying this mitigation will protect your website from exploitation until an official patch can be safely applied.
Users should also monitor their systems for any suspicious activity related to local file inclusion attempts and consider restricting access to sensitive files on the server.