CVE-2026-49777 PUBLISHED

WordPress Product Slider Pro for WooCommerce plugin < 3.5.3 - Backdoor vulnerability

Assigner: Patchstack
Reserved: 01.06.2026 Published: 05.06.2026 Updated: 05.06.2026

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.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS Score: 10

Attack Vector	Network	Scope	Changed
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	ShapedPlugin, LLC
Product	Product Slider Pro for WooCommerce
Versions	Default: unaffected affected from n/a to 3.5.3 (excl.)

Credits

Shane | Patchstack Bug Bounty Program finder

References

https://patchstack.com/database/wordpress/plugin/woo-product-slider-pro/vulnerability/wordpress-product-slider-pro-for-woocommerce-plugin-3-5-2-backdoor-vulnerability?_s_id=cve

Problem Types

CWE-1284 Improper Validation of Specified Quantity in Input CWE

Impacts

CAPEC-523 Malicious Software Implanted