Listen to this Post
CVE-2026-6875 represents a critical security flaw residing within the ServiceNow AI Platform, allowing unauthenticated attackers to achieve remote code execution through a sophisticated sandbox escape.
The vulnerability originates from how attacker-controlled values reach dynamic evaluation paths via unauthenticated pre-authentication endpoints such as assessment_thanks.do.
When an untrusted input reaches these internal scripts, the platform fails to preserve the intended trust boundary around the evaluation context.
A low-trust caller can influence global state or objects used by system libraries, allowing a privileged loader to evaluate library code outside the restricted sandbox.
This leads to a cross-context capability confusion, commonly known as a confused deputy problem.
The sandboxed code can manipulate arguments, callbacks, or global references consumed by privileged mechanisms, enabling the execution of arbitrary server-side JavaScript.
Attackers leverage this mechanism to read sensitive table data, create unauthorized administrator accounts, and issue commands to connected MID Servers, extending the compromise from a cloud instance deep into internal enterprise networks.
DailyCVE Form:
Platform: ServiceNow AI Platform
Version: Pre-patch family releases
Vulnerability: Code Injection Sandbox
Severity: Critical Remote Code
date: July 13 2026
Prediction: Already patched version
What Undercode Say:
Undercode states that CVE-2026-6875 is a textbook case of rapid weaponization, where public proof-of-concept material translated into active exploitation in the wild within five days of disclosure. The analysis highlights that simple perimeter defenses tuned exclusively to the initial public signature are insufficient, as secondary escape chains can bypass standard signature-based rules. Security teams must examine instance logs for anomalies in pre-authentication endpoints and monitor MID Server host behavior.
Check for anomalous requests to pre-auth endpoints grep "/assessment_thanks.do" /var/log/servicenow/access.log Scan for unexpected administrator account creation python3 -m servicenow_auditor --check-admins --logs /var/log/servicenow/ Inspect MID Server process executions for unauthorized commands ps aux | grep mid-server | grep -vE "trusted_process_list"
Exploit: (Educational Purposes!)
The exploitation vector targets unauthenticated endpoints that expose server-side JavaScript evaluation features. By supplying specially crafted payloads containing manipulated global references or object prototypes, an attacker tricks the privileged loader into executing arbitrary script instructions on behalf of the restricted context. The payload circumvents the inner sandbox layer by leveraging the confused deputy mechanism, whereby high-trust system functions inadvertently process attacker-influenced parameters. Successful execution grants the attacker full platform-level scripting privileges, allowing script inclusions, business rule modifications, and downstream proxy execution via connected infrastructure.
Protection: from this CVE
Defending against CVE-2026-6875 requires immediate application of official vendor patches provided in advisory KB3137947 across all hosted and self-hosted instances. Organizations must inspect logs for unauthorized user account creations, especially accounts granted the administrator role. Administrators should audit all Script Includes and business rules for undocumented modifications. Furthermore, isolating MID Servers and internal proxy hosts from direct cloud instance manipulation using strict endpoint detection and response (EDR) rules prevents lateral movement into internal corporate networks.
Impact:
The impact of CVE-2026-6875 is severe, as successful exploitation results in unauthenticated remote code execution across the entire ServiceNow platform. Attackers can extract confidential corporate and customer table data, manipulate workflows, falsify tickets, approve malicious requests, and compromise connected enterprise infrastructure through MID Servers. Because the platform sits at the center of enterprise IT operations and automation, a breach can cascade across internal network segments, triggering major compliance and regulatory notification requirements under frameworks like NIS2 and DORA.
🎯Let’s Practice Exploiting & Learn Patching For Free:
🎓 Live Courses & Certifications:
Join Undercode Academy for Verified Certifications
🚀 Request a Custom Project:
Secure, high-velocity infrastructure and disruptive technological engineering. Contact our engineering team for high-tier development and proprietary systems:
[email protected]
💎 Smart Architecture | 🛡️ Secure by Design | ⭐ Trusted by Thousands
Sources:
Reported By: github.com
Extra Source Hub:
Undercode
