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CVE-2026-66609 – Unauthenticated SQL Injection – TheGem (Elementor) WordPress Theme ≤ 5.12.3

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Summary

CVE-2026-66609 is an unauthenticated blind SQL injection vulnerability affecting the TheGem (Elementor) WordPress theme, developed by CodexThemes, in versions up to and including 5.12.3. The flaw allows an attacker with no authentication or user interaction to inject malicious SQL via the network, and carries a critical CVSS v3.1 score of 9.3.

Technical details

  • Root cause: Improper neutralization of special elements used in SQL commands (CWE-89) within the TheGem theme codebase, allowing unsanitized input to reach a SQL query.
  • Trigger conditions: No authentication or privileges are required; no user interaction is needed to exploit the flaw.
  • Attack vector: Network-based (AV:N), low attack complexity (AC:L), exploitable remotely against any internet-exposed WordPress site running the vulnerable theme.
  • Impact: Blind SQL injection with a changed scope (S:C), resulting in high confidentiality impact (unauthorized data disclosure from the database) and low availability impact; integrity is not affected.

Affected software

  • CodexThemes TheGem (Elementor) theme — all versions up to and including 5.12.3

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: Update the TheGem (Elementor) WordPress theme to version 5.12.3.1 or later, where this issue has been fixed.
  • If immediate patching is not possible: Restrict or monitor direct internet exposure of the affected WordPress installation, enable a web application firewall with SQL injection rule sets, and audit database access logs for anomalous query patterns until the theme can be updated.

How IONIX identifies potentially affected assets

IONIX matches the following signals against data already collected when it crawled the asset; identifying the technology sends no request beyond that crawl.

  • Raw response body: /wp-content/themes/thegem-elementor/

References

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How IONIX’s External Exposure Management Platform Detects and Validates
Zero-Days to Shrink MTTR

1

Map your entire attack surface (continously)

IONIX uses multi-factor discovery methods, including DNS analysis, certificate mapping, metadata inspection, and more, to automatically map every internet-facing asset across your environment. This includes cloud instances, third-party platforms, shadow IT, and even forgotten infrastructure that traditional tools miss.

2

Monitor for new CVEs

Dozens of threat intel feeds using agentic technology are continuously analyzed to detect the appearance of proof-of-concept code, exploit kits, and indicators of active targeting. IONIX goes further by applying AI to proactively evaluate whether emerging vulnerabilities are likely to be exploited, even before PoCs go public.

3

Identify Potential External Exposures

Not all CVEs matter. IONIX filters vulnerabilities by asking attacker-centric questions: Can it be reached from the internet? Does it require authentication? Is it being exploited in the wild? This dramatically reduces noise and focuses teams on threats that can actually be weaponized.

4

Create Safe, Scalable Exploit Validations

IONIX transforms real-world PoCs into safe, non-intrusive test payloads that can be run in production environments without disruption. These simulations are precisely targeted to the systems that are vulnerable, ensuring rapid validation without unnecessary load.

5

Execute Exploit Validations

By combining context about software stack, versioning, exposure status, and reachability, IONIX ensures that only the right payloads are executed against the right assets, maximizing efficiency and minimizing risk.

6

Drive Fast and Actionable Remediation

Results are routed through integrations with ticketing, SOAR, and SIEM tools. Issues are written in plain language, bundled into remediation clusters, and prioritized based on asset criticality, exploitability, and blast radius. This shortens mean time to remediation (MTTR) and empowers teams to act with confidence.

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  • Mapping of all Assets with this Technology
  • Identification of potentially exposed assets to this CVE
  • Confirmation of verified exploitable assets
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