Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Unauthenticated network-reachable PHP include sink (AV:N/PR:N/UI:N); AC:H reflects a non-trivial request precondition implied by the vendor; LFI on WordPress routinely yields full CIA impact via wp-config.php disclosure.
Primary rating from Vendor (Patchstack).
CVSS VectorVendor: Patchstack
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
1DescriptionCVE.org
Unauthenticated Local File Inclusion in Nexio <= 1.10.0 versions.
AnalysisAI
Unauthenticated local file inclusion in the ThemeREX Nexio WordPress theme (versions ≤ 1.10.0) allows remote attackers to coerce the PHP application into including arbitrary local files, enabling disclosure of sensitive server content and potentially remote code execution if attacker-controlled content can be staged on the host. The CWE-98 classification and PHP tag indicate a classic dynamic include/require sink reachable without authentication. At time of analysis there is no public exploit identified and no CISA KEV listing, but the unauthenticated network vector and high CVSS (8.1) warrant prompt action on any WordPress site running this theme.
Technical ContextAI
Nexio is a commercial WordPress theme distributed by ThemeREX (CPE cpe:2.3:a:themerex:nexio). CWE-98 covers Improper Control of Filename for Include/Require Statement in PHP, the canonical PHP LFI/RFI sink: user-controllable input is concatenated into include(), require(), include_once(), or require_once() without proper allow-listing or path canonicalization. In a WordPress theme this commonly arises from AJAX handlers, template loaders, or shortcode parameters that map a request parameter to a filename. Because PHP include resolves relative paths against include_path and supports stream wrappers, such a sink can pull /etc/passwd, wp-config.php (exposing DB credentials and auth keys), or PHP session files; on hosts where attackers can plant content (uploads directory, log files, /tmp), it can pivot from disclosure to code execution.
RemediationAI
Patch available per vendor advisory - consult the Patchstack listing at https://patchstack.com/database/wordpress/theme/nexio/vulnerability/wordpress-nexio-theme-1-10-0-local-file-inclusion-vulnerability for the exact fixed release (an upgraded Nexio version beyond 1.10.0 is required; a specific fix version was not included in the supplied input, so verify via the advisory before deploying). Until the theme is updated, restrict access to the WordPress site behind authentication or a WAF rule that blocks suspicious include parameters containing '../', null bytes, 'php://', 'file://', or absolute paths (note this can break legitimate theme AJAX endpoints, so test in staging), harden PHP with open_basedir scoped to the WordPress docroot and allow_url_include=Off, and rotate WordPress salts and database credentials if you have reason to believe wp-config.php may already have been disclosed. As a last resort, switch to a different theme - deactivating Nexio alone may not be sufficient if the vulnerable PHP files remain reachable on disk.
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Same weakness CWE-98 – PHP Remote File Inclusion
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External POC / Exploit Code
Leaving vuln.today
EUVD-2025-210194