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CVE-2026-18357 – Unauthenticated Sensitive Data Disclosure – WPC Order Tip for WooCommerce WordPress

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Summary

CVE-2026-18357 is an unauthenticated information disclosure (CWE-200) vulnerability in the WPC Order Tip for WooCommerce WordPress plugin in all versions before 3.3.1. One of the plugin’s reporting features performs no authorization or nonce checks, allowing remote unauthenticated attackers to retrieve sensitive customer order data. It carries a CVSS v3.1 base score of 7.5 (High).

Technical details

  • Root cause: A reporting feature in the plugin does not perform authorization or nonce validation before returning order data.
  • Trigger conditions: No authentication and no user interaction are required to invoke the affected reporting feature.
  • Attack vector: Network — the flaw is reachable remotely over HTTP/HTTPS.
  • Impact: Attackers can retrieve sensitive order data belonging to any customer of the store, including billing names, order IDs and statuses, fee amounts, and order dates. Confidentiality is impacted; integrity and availability are not.

Affected software

  • WPC Order Tip for WooCommerce WordPress plugin: all versions before 3.3.1.
  • Fixed in version 3.3.1.

Severity

  • CVSS v3.1 base score: 7.5 (High)
  • Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Mitigation and recommended actions

  • Immediate: Update the WPC Order Tip for WooCommerce plugin to version 3.3.1 or later.
  • If no patch can be applied: Restrict network access to the affected reporting endpoint (for example via a WAF rule or web server access controls), or disable/remove the plugin until it can be updated.

How IONIX identifies potentially affected assets

IONIX matches the following signals against data already collected when it crawled the asset; identifying the technology sends no request beyond that crawl.

  • Raw HTTP response body: /wp-content/plugins/wpc-order-tip/

References

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Map your entire attack surface (continously)

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Not all CVEs matter. IONIX filters vulnerabilities by asking attacker-centric questions: Can it be reached from the internet? Does it require authentication? Is it being exploited in the wild? This dramatically reduces noise and focuses teams on threats that can actually be weaponized.

4

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IONIX transforms real-world PoCs into safe, non-intrusive test payloads that can be run in production environments without disruption. These simulations are precisely targeted to the systems that are vulnerable, ensuring rapid validation without unnecessary load.

5

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By combining context about software stack, versioning, exposure status, and reachability, IONIX ensures that only the right payloads are executed against the right assets, maximizing efficiency and minimizing risk.

6

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Results are routed through integrations with ticketing, SOAR, and SIEM tools. Issues are written in plain language, bundled into remediation clusters, and prioritized based on asset criticality, exploitability, and blast radius. This shortens mean time to remediation (MTTR) and empowers teams to act with confidence.

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