Cyber Resilience

CVE-2023-6778

MediumPublic PoC

Published: 18 December 2023

Published
18 December 2023
Modified
21 November 2024
KEV Added
—
Patch
—
CVSS Score v3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS Score 0.0014 34.5th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-6778 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Clear Clearml Server. Its CVSS base score is 5.4 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 34.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

This vulnerability is AI-related — categorised as Other Platforms; in the Other ATLAS/OWASP Terms risk domain; MITRE ATLAS techniques in scope: Discover AI Model Family (AML.T0014), Poison Training Data (AML.T0020), Establish Accounts (AML.T0021).

EU & UK References

Vulnerability details

Cross-site Scripting (XSS) - Stored in GitHub repository allegroai/clearml-server prior to 1.13.0.

CWE(s)
CWE-79

AI Security AnalysisAI

AI Category
Other Platforms
Risk Domain
Other ATLAS/OWASP Terms
OWASP Top 10 for LLMs 2025
None mapped
Classification Reason
ClearML Server is an open-source MLOps platform for managing AI/ML experiments, data, and workflows, fitting under 'Other Platforms' as it is an enterprise-grade platform for AI/ML operations, not matching more specific categories like frameworks or libraries.

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1059.007 JavaScript Execution
Adversaries may abuse various implementations of JavaScript for execution.
attack.mitre.org →
T1539 Steal Web Session Cookie Credential Access
An adversary may steal web application or service session cookies and use them to gain access to web applications or Internet services as an authenticated user without needing credentials.
attack.mitre.org →
T1555.003 Credentials from Web Browsers Credential Access
Adversaries may acquire credentials from web browsers by reading files specific to the target browser.
attack.mitre.org →
Why these techniques?

Stored XSS in ClearML-server enables exploitation of a public-facing web application (T1190), arbitrary JavaScript execution in victim browsers (T1059.007), and facilitates stealing web session cookies (T1539) or credentials from web browsers (T1555.003) via injected scripts.

MITRE ATLAS TechniquesAI

MITRE ATLAS techniques

AML.T0014: Discover AI Model FamilyAML.T0020: Poison Training DataAML.T0021: Establish AccountsAML.T0022AML.T0026AML.T0027AML.T0037: Data from Local SystemAML.T0038AML.T0040: AI Model Inference API Access

Affected Assets

clear
clearml server
≤ 1.13.0

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

CA-8 Penetration Testing
addresses: CWE-79

Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.

SI-10 Information Input Validation
addresses: CWE-79

Validates web inputs to reject script-related content that could produce XSS.

SI-15 Information Output Filtering
addresses: CWE-79

Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.

References