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PatchSiren cyber security CVE debrief

CVE-2026-6287 devitemsllc CVE debrief

A stored cross-site scripting (XSS) vulnerability in the ShopLentor - WooCommerce Builder for Elementor & Gutenberg WordPress plugin allows authenticated attackers with contributor-level access or higher to inject arbitrary web scripts via the 'blockUniqId' block attribute in multiple Product Grid blocks. The vulnerability exists in versions up to and including 3.3.8 due to insufficient input sanitization and output escaping. When a user accesses an injected page, the malicious scripts execute in their browser context.

Vendor
devitemsllc
Product
ShopLentor – All-in-One WooCommerce Growth & Store Enhancement Plugin
CVSS
MEDIUM 5.4
CISA KEV
Not listed in stored evidence
Original CVE published
2026-05-27
Original CVE updated
2026-07-23
Advisory published
2026-05-27
Advisory updated
2026-07-23

Who should care

WordPress site administrators using ShopLentor plugin versions 3.3.8 or earlier; security teams monitoring for authenticated XSS vectors in content management systems; developers maintaining WooCommerce/Elementor integrations

Technical summary

The ShopLentor plugin's Product Grid blocks fail to properly sanitize and escape the 'blockUniqId' block attribute before rendering it in page output. This allows authenticated users with contributor privileges or higher to supply malicious JavaScript payloads that persist in post content and execute when any user views the affected page. The vulnerability is classified as CWE-79 (Improper Neutralization of Input During Web Page Generation).

Defensive priority

medium

Recommended defensive actions

  • Update ShopLentor - WooCommerce Builder for Elementor & Gutenberg plugin to version 3.3.9 or later
  • Review existing posts and pages for suspicious content in Product Grid blocks, particularly examining the blockUniqId attribute
  • Implement Content Security Policy (CSP) headers to mitigate impact of XSS vulnerabilities
  • Consider restricting contributor-level access pending verification of remediation
  • Monitor web application logs for unusual script injection patterns or unexpected external resource loading

Evidence notes

The vulnerability affects the 'blockUniqId' block attribute in multiple Product Grid blocks. The CVSS 3.1 vector is AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N, indicating network attack vector, low attack complexity, low privileges required, user interaction required, changed scope, and low impacts to confidentiality and integrity.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-6287 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-6287

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-6287 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-6287

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.