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CVE-2026-89236 – Unauthenticated SQL Injection – SaveTo Wishlist Lite WordPress Plugin < 1.1.5

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Summary

CVE-2026-89236 is an unauthenticated SQL injection vulnerability in the SaveTo Wishlist Lite WordPress plugin, caused by insufficient sanitization and escaping of parameters used in the ORDER BY clause of a SQL query. The flaw affects all plugin versions prior to 1.1.5 and carries a CVSS v3.1 base score of 8.6 (High), allowing remote, unauthenticated attackers to extract sensitive information from the site’s database.

Technical details

  • Root cause: the plugin fails to sanitize and escape the sort_column and sort_order parameters before incorporating them into the ORDER BY clause of a SQL query.
  • Trigger conditions: an attacker sends a crafted request containing malicious values in the sort_column and/or sort_order parameters to a vulnerable endpoint exposed by the plugin.
  • Attack vector: network-based, requiring no authentication and no user interaction (AV:N/AC:L/PR:N/UI:N).
  • Impact: attackers can append additional SQL statements to extract sensitive data from the WordPress database (high confidentiality impact); no direct impact on integrity or availability is indicated by the vector.

Affected software

  • SaveTo Wishlist Lite WordPress plugin, all versions before 1.1.5 (i.e., >= 0 and < 1.1.5)

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: Update the SaveTo Wishlist Lite plugin to version 1.1.5 or later, which addresses the improper sanitization of the affected parameters.
  • If no patch can be applied immediately: restrict or monitor access to the affected plugin endpoints, and deploy a web application firewall rule to filter requests containing SQL metacharacters or anomalous values in sort_column and sort_order parameters until the update can be applied.

References

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