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CVE-2026-27544 – Unauthenticated Remote Code Execution – QA Analytics (qa-heatmap-analytics) WordPre

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Summary

CVE-2026-27544 is an unauthenticated Remote Code Execution (RCE) vulnerability in the QA Analytics WordPress plugin (packaged as qa-heatmap-analytics, developed by QuarkA), affecting all versions up to and including 5.2.0.0. The flaw is classified as CWE-94 (Improper Control of Generation of Code / Code Injection) and carries a maximum CVSS v3.1 base score of 10.0 (Critical), as it can be exploited over the network without authentication or user interaction.

Technical details

  • Root cause: Improper control of code generation (CWE-94) within the plugin, allowing injected code to be executed by the server.
  • Trigger conditions: No authentication or user interaction is required to trigger the vulnerability.
  • Attack vector: Network — an attacker can send requests directly to a vulnerable WordPress site running the affected plugin.
  • Impact: Full compromise of confidentiality, integrity, and availability (C:H/I:H/A:H), consistent with arbitrary code execution on the underlying server.

Affected software

  • QA Analytics (qa-heatmap-analytics) WordPress plugin by QuarkA: versions up to and including 5.2.0.0
  • Fixed in version 5.2.0.1 and later

Severity

  • CVSS v3.1 Base Score: 10.0 (Critical)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Mitigation and recommended actions

  • Immediate: Update the QA Analytics plugin to version 5.2.0.1 or later.
  • If immediate patching is not possible: Consider deactivating or removing the plugin until the update can be applied, and restrict/monitor access to the WordPress admin and plugin endpoints via a web application firewall.

References

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