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CVE-2026-54827 – Unauthenticated SQL Injection – Real Estate 7 WordPress Theme ≤ 3.5.9

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Summary

CVE-2026-54827 is a critical unauthenticated SQL Injection vulnerability (CWE-89) in the Real Estate 7 WordPress theme by Contempo Themes (contempoinc), affecting all versions up to and including 3.5.9. Scoring 9.3 (Critical) on the CVSS v3.1 scale, the flaw allows any remote, unauthenticated attacker to inject arbitrary SQL commands into the underlying WordPress database with no user interaction required. The IONIX research team recommends immediately upgrading to version 3.6.0, which contains the vendor-provided fix.

Technical details

  • Root cause: Insufficient sanitization and improper preparation of user-supplied input within the theme’s database query handling, classified as CWE-89 (Improper Neutralization of Special Elements used in an SQL Command).
  • Trigger conditions: The vulnerability requires no authentication and no user interaction; an attacker needs only network access to a WordPress site running the affected theme.
  • Attack vector: A remote attacker sends a specially crafted HTTP request to an endpoint exposed by the Real Estate 7 theme, injecting malicious SQL that is passed unsanitized into database queries.
  • Impact: Successful exploitation enables full extraction of sensitive WordPress database contents — including administrator credentials, user personally identifiable information (PII), and property listing data. The changed scope metric (S:C) indicates the impact extends beyond the vulnerable theme component to the underlying database system. Confidentiality impact is rated High; availability impact is rated Low.

Affected software

  • Real Estate 7 WordPress Theme by Contempo Themes (contempoinc) — all versions ≤ 3.5.9

Severity

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

Mitigation and recommended actions

  • Immediate: Upgrade Real Estate 7 to version 3.6.0 or later, which contains the vendor-provided security fix.
  • If immediate patching is not feasible: Deploy a web application firewall (WAF) with rules to inspect and block SQL injection payloads targeting the theme’s endpoints; restrict public access to the WordPress installation where operationally permissible; and audit database access logs for evidence of unauthorized query execution.

IONIX Status

The IONIX research team is tracking ongoing exploitation attempts and recommends immediate patching. Potentially affected assets are outlined in this post.

References

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