External risk intelligence

RD Station Code Injection Vulnerability Allows Remote Code Inclusion.

CVE advisorySeverity: CRITICAL (CVSS 9.9)

CVE-2026-49774

A critical code injection vulnerability in RD Station allows remote code inclusion. This means an attacker could potentially execute arbitrary code on a system, leading to unauthorized access or compromise. It's important to confirm if this technology is in use and assess any potential exposure.

4Halo Surface Signal

Code Injection

External exposure likelihood

Halo Surface Signal score for CVE-2026-49774

The vulnerability affects a WordPress plugin, which is a type of web application component commonly deployed as a public-facing web service. Such plugins are frequently exposed to the internet as part of the standard website infrastructure, making the underlying code reachable via common web traffic.

PCI scan relevance

PCI Relevance for CVE-2026-49774

Yes

CVE-2026-49774 — Halo PCI Relevance: Yes. Under typical PCI ASV external scan criteria, this issue may be flagged for scan prioritization.

This vulnerability is PCI scan-relevant because code injection flaws can lead to an automatic failure in PCI ASV scans.

Scan-prioritization guidance only—not a PCI DSS certification or ASV attestation.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Horizon Alert

Summary of the vulnerability and why it matters

This CVE involves a code injection vulnerability within the RD Station technology, potentially allowing for remote code inclusion. The issue has been rated as critical, indicating a significant potential for impact if exploited. The primary concern at this stage is to confirm if this technology is in use and assess any exposure.

  • Allows unauthorized code execution.
  • Critical flaw impacts widely used web tools.
  • Confirm relevance and potential exposure.

Attack Path

How an attacker could exploit the issue

An attacker could gain unauthorized access to a system running RD Station by exploiting a code injection vulnerability. This allows them to insert and execute malicious code, potentially leading to the inclusion of remote code.

  • Requires low privileges and network access.
  • Attacker injects code into the component.
  • Leads to remote code inclusion and execution.

Live Threat

Current exploitation, exposure, and threat context

This Improper Control of Generation of Code vulnerability in RD Station could allow a remote attacker to include arbitrary code when the affected system is accessible over a network.

  • System data could be affected.
  • Remote code inclusion may happen.
  • Unspecified system compromise may occur.

Operational Fix

Recommended remediation, mitigation, and detection steps

This Improper Control of Generation of Code vulnerability affects RD Station, potentially allowing remote code inclusion. Given its nature and the affected product, application owners and infrastructure teams are likely responsible for addressing this critical issue. The immediate first step should be to identify all instances of RD Station within the environment, confirm their external reachability and business criticality, and then assign ownership to the appropriate team for risk-based remediation planning.

  • Application and infrastructure teams own remediation.
  • Verify external reachability and business criticality.
  • Plan risk-based remediation based on ownership.

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

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Frequently asked questions

What is RD Station?

RD Station is a software plugin for WordPress. It is commonly used by website administrators to integrate marketing automation and lead management tools directly into their sites, helping businesses manage customer relationships and digital marketing campaigns.

What does CWE-94 mean for CVE-2026-49774?

CVE-2026-49774 is classified as CWE-94, or Improper Control of Generation of Code. In plain terms, this means the software does not properly sanitize input, allowing an attacker to inject their own malicious commands. Because the system mistakenly treats this injected data as legitimate instructions, it executes the unauthorized code, leading to a critical security breakdown.

How is this vulnerability triggered?

An attacker triggers this flaw by sending specifically crafted network requests to the affected system. Successful exploitation requires the attacker to have at least low-level access to the application. Importantly, this vulnerability is not triggered by standard, benign visitor traffic; it requires deliberate, malicious input designed to bypass the plugin's input validation mechanisms.

Is my site at risk according to Halo Surface Signal?

Halo Surface Signal identifies this as a significant concern because RD Station is a WordPress plugin, which typically operates as a public-facing web service. Because these components are designed to be reachable via standard internet traffic, they are often exposed to external networks. If your instance is internet-facing, it is more accessible to potential remote interference.

What are the first steps to handle this CVE?

Your priority is to inventory your environment to locate all instances of the RD Station plugin. Determine if these instances are exposed to the internet and assess their business importance. Once you have a clear picture of where the software is deployed, assign responsibility to your security or infrastructure teams to plan and implement the necessary updates or mitigation strategies.

References

Sources and related resources

Primary sources: NVD, CVE.org.

NVDPublished