Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Network-reachable unauthenticated LFI (AV:N/PR:N/UI:N); AC:H reflects traversal/encoding preconditions; full C/I/A impact since LFI can yield secrets and PHP code execution.
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 Resurs <= 1.3 versions.
AnalysisAI
Unauthenticated Local File Inclusion in the ThemeREX Resurs WordPress theme versions 1.3 and below allows remote attackers to include and execute arbitrary local files on the server. The flaw, tracked under CWE-98 (Improper Control of Filename for Include/Require), enables disclosure of sensitive files and potential code execution depending on server configuration. No public exploit identified at time of analysis, though Patchstack has confirmed the issue against the affected theme.
Technical ContextAI
The vulnerability is rooted in CWE-98, improper control of filename for an Include/Require statement in PHP. The Resurs theme by ThemeREX (CPE cpe:2.3:a:themerex:resurs) appears to pass user-controlled input into a PHP include/require call without sufficient sanitization or allowlisting. WordPress themes commonly expose AJAX endpoints or template loader parameters that, when improperly validated, can be coerced into loading attacker-chosen paths. Depending on PHP configuration (allow_url_include, open_basedir) and the inclusion sink, this can range from sensitive file disclosure (wp-config.php, /etc/passwd) to full PHP code execution via log poisoning, session files, or uploaded content.
RemediationAI
No vendor-released patch identified at time of analysis - the input data does not include a fixed Resurs theme version. Site operators should consult the Patchstack advisory (https://patchstack.com/database/wordpress/theme/resurs/vulnerability/wordpress-resurs-theme-1-3-local-file-inclusion-vulnerability) for an updated release and apply it once available. As compensating controls, deactivate and replace the Resurs theme on production sites (the most reliable mitigation, with the trade-off of frontend redesign), deploy a WAF rule blocking suspicious traversal sequences (../, %2e%2e, php://, file://) on requests targeting theme paths (may produce false positives on legitimate URL-encoded parameters), and harden PHP by setting allow_url_include=Off and configuring open_basedir to constrain accessible paths (may break legitimate plugins that read outside webroot). Restrict file system permissions on wp-config.php and other secrets so a successful read still limits credential exposure.
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Same weakness CWE-98 – PHP Remote File Inclusion
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External POC / Exploit Code
Leaving vuln.today
EUVD-2025-210235