CVE-2026-22420
Local File Inclusion Vulnerability in AncoraThemes Horizon
Publication date: 2026-03-05
Last updated on: 2026-03-10
Assigner: Patchstack
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| ancorathemes | horizon | From 1.1 (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-2026-22420 is a Local File Inclusion (LFI) vulnerability found in the WordPress Horizon Theme versions up to and including 1.1. It allows an unauthenticated attacker to manipulate the PHP include or require statements to include and display local files from the target website.
This improper control of filenames can expose sensitive information stored on the server, such as database credentials or configuration files.
How can this vulnerability impact me? :
[{'type': 'paragraph', 'content': 'Exploitation of this vulnerability can lead to the exposure of sensitive information from the target website, including database credentials.'}, {'type': 'paragraph', 'content': "Depending on the website's configuration, an attacker could potentially achieve a complete database takeover."}, {'type': 'paragraph', 'content': 'This can result in unauthorized access, data theft, and further compromise 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': 'CVE-2026-22420 is a Local File Inclusion (LFI) vulnerability in the WordPress Horizon Theme up to version 1.1 that allows an attacker to include and display local files. Detection typically involves monitoring for suspicious HTTP requests attempting to include local files via vulnerable parameters.'}, {'type': 'paragraph', 'content': 'While no specific commands are provided in the resources, common detection methods include inspecting web server logs for requests containing suspicious file inclusion patterns such as "../" sequences 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"}, {'type': 'list_item', 'content': "grep -E '\\.\\./|etc/passwd|boot.ini' /var/log/apache2/access.log"}, {'type': 'list_item', 'content': "tail -f /var/log/apache2/access.log | grep -i 'horizon'"}, {'type': 'paragraph', 'content': 'Additionally, network intrusion detection systems (NIDS) or web application firewalls (WAF) with rules targeting LFI patterns can help detect exploitation attempts.'}] [1]
What immediate steps should I take to mitigate this vulnerability?
Since no official patch is currently available for the Horizon theme vulnerability, immediate mitigation involves applying available security measures to block exploitation attempts.
Patchstack has issued a mitigation rule that can be used to block attacks targeting this Local File Inclusion vulnerability until an official patch is released.
Recommended immediate steps include:
- Implement the Patchstack mitigation rule or equivalent WAF rules to block suspicious requests attempting local file inclusion.
- Monitor web server logs for signs of exploitation attempts and block offending IP addresses if necessary.
- Restrict file permissions and harden the server environment to minimize the impact of potential exploitation.
- Consider temporarily disabling or replacing the vulnerable Horizon theme until a secure update is available.