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CVE-2026-18464 – Unauthenticated Denial of Service – WP Maps Pro WordPress Plugin before 6.1.3

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Summary

CVE-2026-18464 is an unauthenticated denial-of-service vulnerability (CWE-400: Uncontrolled Resource Consumption) in the WP Maps Pro WordPress plugin. In all versions before 6.1.3, an AJAX action reachable by unauthenticated users lacks a capability check, allowing an attacker to trigger uncontrolled recursion that exhausts server resources. The issue is rated High severity (CVSS 7.5).

Technical details

  • Root cause: An AJAX action exposed by the plugin does not perform a capability check and is accessible to unauthenticated users.
  • Trigger conditions: An attacker sends requests to the affected AJAX action, which drives uncontrolled recursion.
  • Attack vector: Network; no authentication and no user interaction required.
  • Impact: Exhaustion of server resources leading to denial of service and disruption of site availability. No impact to confidentiality or integrity.

Affected software

  • WP Maps Pro WordPress plugin: all versions before 6.1.3.

Severity

  • CVSS v3.1 base score: 7.5 (High)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Mitigation and recommended actions

  • Immediate: Upgrade WP Maps Pro to version 6.1.3 or later.
  • If no patch can be applied: Restrict network access to the plugin’s AJAX endpoint (for example via a WAF rule or web server access control), or disable the plugin until it 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: wpgmp_local

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.

Are you exposed?

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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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