Incident Score: Analysis & Impact (GRICAM1769683332)
The details regarding individual company incidents & reports gives you full view from every side.
Rankiteo Score Impact Analysis
Key Highlights From The Incident Analysis
- Timeline of Campus France's Vulnerability and lateral movement inside company's environment.
- Overview of affected data sets, including SSNs and PHI, and why they materially increase incident severity.
- How Rankiteo’s incident engine converts technical details into a normalized incident score.
- How this cyber incident impacts Campus France Rankiteo cyber scoring and cyber rating.
- Rankiteo’s MITRE ATT&CK correlation analysis for this incident, with associated confidence level.
Full Incident Analysis Transcript
In this Rankiteo incident briefing, we review the Campus France breach identified under incident ID GRICAM1769683332.
The analysis begins with a detailed overview of Campus France's information like the linkedin page: https://www.linkedin.com/company/campusfrance, the number of followers: 2000, the industry type: Higher Education and the number of employees: 595 employees
After the initial compromise, the video explains how Rankiteo's incident engine converts technical details into a normalized incident score. The incident score before the incident was 774 and after the incident was 754 with a difference of -20 which is could be a good indicator of the severity and impact of the incident.
In the next step of the video, we will analyze in more details the incident and the impact it had on Campus France and their customers.
On 20 January 2026, Grist-Core disclosed Sandbox Escape Vulnerability issues under the banner "Critical Sandbox Escape Flaw in Grist-Core Patched After Disclosure by Cyera Research Labs".
A high-severity sandbox escape vulnerability in Grist-Core, tracked as GHSA-7xvx-8pf2-pv5g (CVSS 9.1), has been patched following responsible disclosure by Cyera Research Labs.
The disruption is felt across the environment, affecting Grist-Core SaaS and self-hosted deployments, and exposing Sensitive data, customer records, operational metrics, integration credentials.
In response, moved swiftly to contain the threat with measures like Patch released (version 1.7.9), migration of Pyodide formula execution under Deno by default, and began remediation that includes Disabled GRIST_PYODIDE_SKIP_DENO flag, introduced permission-based mediation layer.
The case underscores how Resolved, teams are taking away lessons such as Shift from blocklist-based sandbox to capability-based security model reduces risk of formula-based exploitation, and recommending next steps like Ensure GRIST_PYODIDE_SKIP_DENO flag is disabled to prevent reintroduction of the vulnerability. Migrate to Deno-based execution for enhanced security.
Finally, we try to match the incident with the MITRE ATT&CK framework to see if there is any correlation between the incident and the MITRE ATT&CK framework.
The MITRE ATT&CK framework is a knowledge base of techniques and sub-techniques that are used to describe the tactics and procedures of cyber adversaries. It is a powerful tool for understanding the threat landscape and for developing effective defense strategies.
MITRE ATT&CK® Correlation Analysis
Rankiteo's analysis has identified several MITRE ATT&CK tactics and techniques associated with this incident, each with varying levels of confidence based on available evidence. Under the Initial Access tactic, the analysis identified Exploit Public-Facing Application (T1190) with high confidence (90%), with evidence including high-severity sandbox escape vulnerability in Grist-Core, and remote code execution (RCE) by exploiting malicious spreadsheet formulas and Exploitation for Client Execution (T1203) with moderate to high confidence (80%), supported by evidence indicating malicious spreadsheet formulas that bypassed the platform’s Pyodide WebAssembly sandbox. Under the Execution tactic, the analysis identified Command and Scripting Interpreter: Python (T1059.006) with high confidence (90%), supported by evidence indicating python Class Hierarchy Traversal...enabling direct imports of the os module and command execution via os.system(), Native API (T1106) with moderate to high confidence (80%), supported by evidence indicating leveraged ctypes to call ctypes.CDLL(None).system(), loading the system() function from libc, and Command and Scripting Interpreter: JavaScript (T1059.007) with moderate to high confidence (80%), supported by evidence indicating emscripten_run_script_string() to execute JavaScript in the host runtime. Under the Privilege Escalation tactic, the analysis identified Escape to Host (T1611) with high confidence (90%), supported by evidence indicating sandbox escape vulnerability in Grist-Core...bypassed the platform’s Pyodide WebAssembly sandbox. Under the Credential Access tactic, the analysis identified Unsecured Credentials: Credentials In Files (T1552.001) with moderate to high confidence (70%), supported by evidence indicating integration credentials...access to customer records, operational metrics. Under the Collection tactic, the analysis identified Data from Local System (T1005) with moderate to high confidence (80%), supported by evidence indicating exposing sensitive data...customer records, operational metrics, integration credentials. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate confidence (60%), supported by evidence indicating potential compromise of multi-tenant workflows and connected systems. Under the Defense Evasion tactic, the analysis identified Exploitation for Defense Evasion (T1211) with high confidence (90%), supported by evidence indicating sandbox escape vulnerability...bypassed the platform’s Pyodide WebAssembly sandbox and Impair Defenses: Disable or Modify Tools (T1562.001) with moderate to high confidence (70%), supported by evidence indicating gRIST_PYODIDE_SKIP_DENO flag is disabled...reintroduces the vulnerability. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- Campus France Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/campusfrance/incident/GRICAM1769683332
- Campus France CyberSecurity Rating page: https://www.rankiteo.com/company/campusfrance
- Campus France Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/gricam1769683332-grist-core-frances-public-sector-educational-institutions-vulnerability-january-2026/
- Campus France CyberSecurity Score History: https://www.rankiteo.com/company/campusfrance/history
- Campus France CyberSecurity Incident Source: https://cyberpress.org/grist-core-vulnerability/
- Rankiteo A.I CyberSecurity Rating methodology: https://www.rankiteo.com/Images/rankiteo_algo.pdf
- Rankiteo TPRM Scoring methodology: https://static.rankiteo.com/model/rankiteo_tprm_methodology.pdf