CVE-2025-30786 in Quotes llama Plugin
Summary
by MITRE • 03/27/2025
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in oooorgle Quotes llama allows DOM-Based XSS. This issue affects Quotes llama: from n/a through 3.1.0.
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Analysis
by VulDB Data Team • 03/27/2025
The vulnerability identified as CVE-2025-30786 represents a critical cross-site scripting flaw in the oooorgle Quotes llama web application that specifically manifests as a DOM-based XSS vulnerability. This weakness occurs during the web page generation process where input data is not properly sanitized or neutralized before being incorporated into dynamically generated web content. The vulnerability affects all versions of the Quotes llama application from the initial release through version 3.1.0, indicating a persistent flaw that has not been adequately addressed in the software lifecycle.
The technical root cause of this vulnerability stems from improper input validation and sanitization practices within the application's web page generation logic. When user-supplied data is directly embedded into the Document Object Model without adequate security measures, malicious scripts can be injected and executed within the victim's browser context. This DOM-based XSS variant is particularly dangerous because it exploits the browser's interpretation of dynamic content rather than traditional server-side input handling mechanisms. The vulnerability falls under CWE-79 which specifically addresses Cross-Site Scripting flaws, and aligns with ATT&CK technique T1203 for Exploitation for Client Execution.
The operational impact of this vulnerability is significant as it allows attackers to execute arbitrary JavaScript code within the context of any user's browser session who interacts with the affected application. This could enable attackers to steal session cookies, perform unauthorized actions on behalf of users, redirect victims to malicious sites, or extract sensitive information from the application. The DOM-based nature of the vulnerability means that even if the server properly sanitizes input, client-side manipulation can still introduce malicious code execution. Attackers could exploit this by crafting malicious URLs containing script payloads that would execute when users navigate to the affected pages.
Mitigation strategies for this vulnerability should focus on implementing robust input validation and sanitization measures at multiple layers of the application architecture. The recommended approach includes employing strict content security policies, implementing proper HTML encoding for all dynamic content, and utilizing secure coding practices that prevent direct insertion of user input into DOM elements. Additionally, developers should implement proper input sanitization libraries and consider using frameworks that automatically handle XSS protection. The application should also implement proper output encoding when rendering user-generated content, and consider implementing a web application firewall to detect and block suspicious input patterns. Regular security testing including dynamic application security testing and manual penetration testing should be conducted to identify and remediate similar vulnerabilities in the application's codebase.