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CVE-2026-81293 – Unauthenticated SQL Injection – WP Data Access WordPress Plugin (≤ 5.5.81)

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Summary

CVE-2026-81293 is an unauthenticated SQL Injection vulnerability (CWE-89) in the WP Data Access WordPress plugin, affecting all versions up to and including 5.5.81. The plugin fails to properly neutralize special elements in SQL statements, allowing a remote, unauthenticated attacker to inject arbitrary SQL and extract sensitive data from the site’s database. The issue carries a Critical CVSS v3.1 score of 9.3.

Technical details

  • Root cause: Improper neutralization of special elements used in an SQL command (CWE-89) within the WP Data Access plugin.
  • Trigger conditions: No authentication or user interaction is required to exploit the flaw.
  • Attack vector: Network-based; attack complexity is low, meaning exploitation does not require special conditions or timing.
  • Impact: High confidentiality impact (unauthorized read access to database contents, e.g., user credentials, private data) and low availability impact; the scope is changed, meaning the vulnerability can affect resources beyond the vulnerable component itself.

Affected software

  • WP Data Access (WordPress plugin) by Passionate Programmer Peter — versions ≤ 5.5.81
  • Fixed in version 5.5.82

Severity

  • CVSS v3.1 Base Score: 9.3 (Critical)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L

Mitigation and recommended actions

  • Immediate: Update the WP Data Access plugin to version 5.5.82 or later, where the SQL injection issue is resolved.
  • If immediate patching is not possible: Restrict or disable public access to the affected plugin’s front-end/API endpoints where feasible, and monitor database and web server logs for anomalous SQL error messages or injection patterns until the update can be applied.

References

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