Overview

Argo CD, a widely adopted GitOps continuous delivery tool for Kubernetes, has been identified to possess a significant security vulnerability labeled as CVE-2025-47933. This vulnerability, present in versions preceding 2.13.8, 2.14.13 and 3.0.4, allows for an attacker to execute arbitrary actions on behalf of the victim via the application’s API. This issue has significant implications, as it can potentially lead to full system compromise or data leakage, affecting any organization utilizing the affected versions of Argo CD.
The gravity of this vulnerability is further emphasized by its high CVSS severity score of 9.0, indicating the potential for considerable harm and disruption if successfully exploited. Therefore, understanding the nature of CVE-2025-47933, how it operates, and how to mitigate it, is of paramount importance for any entity using Argo CD.

Vulnerability Summary

CVE ID: CVE-2025-47933
Severity: Critical (9.0)
Attack Vector: Network
Privileges Required: Low
User Interaction: Required
Impact: System compromise or data leakage

Affected Products

Product | Affected Versions

Argo CD | 2.13.7 and earlier
Argo CD | 2.14.12 and earlier
Argo CD | 3.0.3 and earlier

How the Exploit Works

The vulnerability stems from Argo CD’s improper filtering of URL protocols on the repository page. This allows an attacker with the ability to edit the repository to execute a cross-site scripting (XSS) attack. Specifically, the attacker can craft a malicious URL that, when processed by the application, executes arbitrary code or actions on behalf of the victim.

Conceptual Example Code

The following conceptual code illustrates how an attacker might exploit the vulnerability:

POST /api/v1/repositories HTTP/1.1
Host: target.example.com
Content-Type: application/json
{
"repoURL": "javascript:malicious_code",
"name": "malicious_repo"
}

In this example, the attacker creates a new repository with a URL containing malicious JavaScript code. When the victim interacts with this repository, the malicious code is executed, leading to potential system compromise or data leakage.

Mitigation Guidance

The most effective solution to this vulnerability is to apply the vendor-provided patches, which have been released in Argo CD versions 2.13.8, 2.14.13, and 3.0.4. These patches address the issue by implementing proper URL protocol filtering, eliminating the potential for XSS attacks.
As a temporary mitigation, organizations can employ Web Application Firewalls (WAFs) or Intrusion Detection Systems (IDS) to detect and prevent potential attacks. However, these should be seen as temporary measures, and applying the vendor patches should be a priority.