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CVE-2026-54841 – Unauthenticated Sensitive Data Exposure – Vitepos (WooCommerce POS) <= 3.4.2

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Summary

CVE-2026-54841 is a high-severity Unauthenticated Sensitive Data Exposure vulnerability in the Vitepos – Point of Sale (POS) for WooCommerce WordPress plugin by Appsbd, affecting all versions up to and including 3.4.2. With a CVSS v3.1 base score of 7.5 (HIGH), the flaw allows any unauthenticated remote attacker to retrieve sensitive information without any privileges or user interaction. A patched version is available and immediate upgrading is strongly recommended.

Technical details

  • Root cause: Classified as CWE-201 (Insertion of Sensitive Information Into Sent Data) — the plugin exposes sensitive data within transmitted responses in a manner accessible to unauthenticated network requesters.
  • Trigger conditions: No authentication, no user interaction, and no special configuration are required to trigger the vulnerability; an attacker only needs network access to the affected WordPress site.
  • Attack vector: Remotely exploitable over the network (AV:N), with low attack complexity (AC:L), no privileges required (PR:N), and no user interaction (UI:N).
  • Impact: High confidentiality impact (C:H) with no integrity or availability impact. Sensitive data processed or transmitted by the Vitepos plugin — which handles WooCommerce point-of-sale operations including order records, customer data, and POS session information — may be exposed to unauthenticated attackers.

Affected software

  • Vitepos – Point of Sale (POS) for WooCommerce (vitepos-lite) by Appsbd — all versions <= 3.4.2

Severity

  • CVSS v3.1 Base Score: 7.5 (HIGH)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Mitigation and recommended actions

  • Immediate: Upgrade Vitepos to version 3.4.3 or later. Version 3.4.4 is the latest release currently available in the WordPress Plugin Repository and contains the security fix.
  • Verify the installed plugin version via the WordPress admin dashboard under Plugins → Installed Plugins and apply any pending updates without delay.
  • If an immediate upgrade is not possible, consider temporarily deactivating the plugin and restricting access to the WordPress site’s REST API endpoints from untrusted networks as a temporary mitigation until patching can be completed.

IONIX Status

The IONIX research team is tracking ongoing exploitation attempts and recommends immediate patching. Potentially affected assets are outlined in this post.

References

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