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CVE-2026-88926 – Unauthenticated SQL Injection – VikRentItems WordPress Plugin before 1.2.4

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Summary

CVE-2026-88926 is an unauthenticated SQL injection vulnerability (CWE-89) in the VikRentItems Flexible Rental Management System plugin for WordPress. The plugin fails to sanitize and escape certain parameters before using them in SQL statements, allowing remote, unauthenticated attackers to inject arbitrary SQL. The flaw carries a High severity rating (CVSS 8.6) due to its network-exploitable, no-authentication-required nature.

Technical details

  • Root cause: One or more plugin parameters are concatenated into SQL queries without proper sanitization or escaping.
  • Trigger conditions: No authentication or user interaction is required; an attacker only needs network access to a vulnerable WordPress site running the affected plugin.
  • Attack vector: Network (remote), low attack complexity, no privileges required.
  • Impact: Successful exploitation allows extraction of data from the site’s database (high confidentiality impact); the CVSS vector indicates no direct integrity or availability impact, though database read access can still expose sensitive data such as credentials, customer records, or booking information.

Affected software

  • VikRentItems – Flexible Rental Management System (WordPress plugin): all versions prior to 1.2.4

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 VikRentItems plugin to version 1.2.4 or later, which addresses the sanitization/escaping issue.
  • If immediate patching is not possible:
    • Restrict or monitor access to the plugin’s front-end and admin-ajax endpoints via a Web Application Firewall (WAF) tuned to detect SQL injection payloads.
    • Review web server and database logs for anomalous query patterns targeting the plugin.
    • Consider temporarily deactivating the plugin if it cannot be patched promptly, given the unauthenticated exploitability.

References

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