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CVE-2026-81800 – Unauthenticated SQL Injection – Verified Reviews (Avis Vérifiés) WordPress Plugin ≤

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Summary

CVE-2026-81800 is an unauthenticated, blind SQL injection vulnerability in the Verified Reviews (Avis Vérifiés) WordPress plugin (package netreviews), affecting all versions up to and including 2.4.6. The flaw allows a remote, unauthenticated attacker to inject SQL commands into database queries executed by the plugin, potentially exposing sensitive data stored in the WordPress database. The vulnerability carries a CVSS v3.1 base score of 9.3 (Critical).

Technical details

  • Root cause: improper neutralization of special elements used in an SQL command (CWE-89), allowing attacker-controlled input to be incorporated into SQL queries without adequate sanitization or parameterization.
  • Trigger conditions: an attacker sends a specially crafted request to a vulnerable endpoint exposed by the plugin; no authentication or user interaction is required.
  • Attack vector: network-based (remote), low attack complexity, no privileges or user interaction required.
  • Impact: classified as blind SQL injection, enabling an attacker to interact directly with the underlying database — including extraction of stored data — with a resulting scope change, high confidentiality impact, and low availability impact.

Affected software

  • Verified Reviews (Avis Vérifiés) WordPress plugin, versions up to and including 2.4.6.

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: No official patched version has been released by the vendor as of publication. Site owners should monitor the plugin’s WordPress.org page for an update and apply it as soon as it becomes available.
  • If no patch: Until a fix is released, consider deactivating and removing the Verified Reviews (Avis Vérifiés) plugin if it is not business-critical. Where the plugin must remain active, deploy a web application firewall rule to filter SQL injection patterns targeting the plugin’s endpoints, restrict/monitor unauthenticated access to plugin-specific request parameters, and review database and web server logs for anomalous query patterns indicative of exploitation attempts.

References

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