Severity by source
AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Primary rating from Vendor (patchstack) · only source for this CVE.
CVSS VectorVendor: patchstack
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Lifecycle Timeline
3DescriptionCVE.org
Improper Validation of Specified Quantity in Input vulnerability in ShapedPlugin, LLC Product Slider Pro for WooCommerce allows Malicious Software Implanted.
This issue affects Product Slider Pro for WooCommerce: from n/a before 3.5.3.
No patched version is available - the vendor has applied a fix to an existing release without publishing a new version. While the patch provided by the vendor is valid, releasing it under the existing version number leaves users unable to reliably determine whether they are running a patched or vulnerable installation. As a result, we treat this as an unpatched version.
Articles & Coverage 2
AnalysisAI
Backdoor/malicious code implant in the ShapedPlugin Product Slider Pro for WooCommerce WordPress plugin (versions before 3.5.3) allows remote unauthenticated attackers full compromise of the hosting site with CVSS 10.0 and a scope-changing vector. The Patchstack reference characterizes this as a backdoor vulnerability, and no public exploit has been identified at the time of analysis, though the trivial nature of supply-chain implants means abuse is plausible. Notably, the vendor patched the existing release without bumping the version number, so administrators cannot reliably tell whether their installation is fixed.
Technical ContextAI
Product Slider Pro for WooCommerce is a commercial WordPress plugin from ShapedPlugin, LLC that renders product carousels/sliders inside WooCommerce storefronts. The weakness is mapped to CWE-1284 (Improper Validation of Specified Quantity in Input), but Patchstack's intelligence and the description's 'Malicious Software Implanted' language indicate that vulnerable releases shipped with attacker-controllable or backdoor functionality embedded in the plugin code itself - a supply-chain style compromise rather than a typical input-handling bug. Because WordPress plugins execute inside the PHP request lifecycle with site-level privileges, any reachable backdoor endpoint effectively grants the attacker the same authority as the web application user. No CPE strings were supplied in the intelligence package, so exact CPE enumeration cannot be performed.
RemediationAI
Upstream fix available but no vendor-released patched version identifier exists - the vendor silently corrected the existing release without bumping the version, so administrators should reinstall Product Slider Pro for WooCommerce directly from ShapedPlugin, replacing all plugin files on disk to ensure the malicious code is removed, and verify file hashes against a freshly downloaded copy rather than trusting the displayed version string. Because this is described as a backdoor implant, also audit wp-content/plugins/woo-product-slider-pro/ for unexpected PHP files, scan the WordPress database for unknown admin users and scheduled tasks, rotate all WordPress secrets (wp-config.php SALTs, admin passwords, API keys) and review web logs for prior abuse before the reinstall. As a compensating control until reinstallation, deactivate and delete the plugin (this removes the product slider feature from storefronts) or place the plugin's endpoints behind a WAF rule blocking unauthenticated access - see https://patchstack.com/database/wordpress/plugin/woo-product-slider-pro/vulnerability/wordpress-product-slider-pro-for-woocommerce-plugin-3-5-2-backdoor-vulnerability for advisory details.
The isMail transport in PHPMailer before 5.2.20 might allow remote attackers to pass extra parameters to the mail comman
The Backup Migration plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 1
The Hash Form - Drag & Drop Form Builder plugin for WordPress is vulnerable to arbitrary file uploads due to missing fil
The GiveWP - Donation Plugin and Fundraising Platform plugin for WordPress is vulnerable to PHP Object Injection in all
The Simple File List plugin for WordPress through version 4.2.2 contains an unauthenticated remote code execution vulner
The AI Engine WordPress plugin through version 3.1.3 exposes Bearer Token values through the /mcp/v1/ REST API endpoint
The Ninja Forms plugin before 2.9.42.1 for WordPress allows remote attackers to conduct PHP object injection attacks via
The Business Directory Plugin - Easy Listing Directories for WordPress plugin for WordPress is vulnerable to time-based
SQL injection in the NotificationX WordPress plugin (versions up to and including 2.8.2) allows unauthenticated remote a
The POST SMTP Mailer - Email log, Delivery Failure Notifications and Best Mail SMTP for WordPress plugin for WordPress i
The MasterStudy LMS WordPress Plugin - for Online Courses and Education plugin for WordPress is vulnerable to union base
The Country State City Dropdown CF7 plugin for WordPress is vulnerable to SQL Injection via the ‘cnt’ and 'sid' paramete
Same technique Information Disclosure
View allShare
External POC / Exploit Code
Leaving vuln.today
EUVD-2026-34792
GHSA-r843-rvx7-3rjg