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CVE-2026-84047 – Unauthenticated SQL Injection – Album Cover Finder WordPress Plugin (≤ 0.7.0)

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Summary

CVE-2026-84047 is an unauthenticated SQL injection (SQLi) vulnerability in the Album Cover Finder WordPress plugin, affecting all versions up to and including 0.7.0. The plugin fails to properly sanitize and escape a user-supplied parameter before using it in a SQL query, allowing remote, unauthenticated attackers to inject arbitrary SQL statements. The flaw carries a CVSS v3.1 base score of 8.6 (High), reflecting its network attack vector, lack of required privileges or user interaction, and high confidentiality impact.

Technical details

  • Root cause: The plugin does not properly sanitize or escape a request parameter before concatenating it into a backend SQL query, resulting in a classic SQL injection flaw (CWE-89).
  • Trigger conditions: An attacker sends a specially crafted request containing malicious SQL syntax in the vulnerable parameter to a WordPress site running the affected plugin; no login or prior session is required.
  • Attack vector: Remote/network-based (AV:N), low attack complexity (AC:L), no privileges required (PR:N), no user interaction (UI:N).
  • Impact: Successful exploitation allows an attacker to read data from the site’s underlying database (high confidentiality impact), potentially exposing sensitive information such as user credentials, session data, or other stored content. The scope is changed (S:C), indicating the vulnerability can affect resources beyond the vulnerable component itself.

Affected software

  • Album Cover Finder WordPress plugin — all versions through 0.7.0 (0.0.0 – 0.7.0)

Severity

  • CVSS v3.1 Base Score: 8.6 (High)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Mitigation and recommended actions

  • Immediate: As of publication, no patched version of Album Cover Finder addressing this vulnerability has been released. Organizations should deactivate and remove the Album Cover Finder plugin from affected WordPress sites until an official fix is available.
  • If no patch is available:
    • Deactivate the plugin as the most effective immediate mitigation.
    • Deploy a Web Application Firewall (WAF) rule to detect and block SQL injection patterns targeting the plugin’s endpoints.
    • Monitor web server and database logs for anomalous query patterns or errors indicative of SQL injection attempts.
    • Restrict direct external access to non-essential WordPress plugin endpoints where feasible.
    • Continue to check the WordPress.org plugin repository and vendor channels for an official security update, and apply it promptly once released.

References

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