CVE-2025-30532 in Weather Layer Plugin
Summary
by MITRE • 03/24/2025
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in MorganF Weather Layer allows Stored XSS. This issue affects Weather Layer: from n/a through 4.2.1.
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Analysis
by VulDB Data Team • 03/24/2025
The vulnerability identified as CVE-2025-30532 represents a critical cross-site scripting flaw within the MorganF Weather Layer application that enables stored XSS attacks. This vulnerability exists in the web page generation process where input validation and sanitization mechanisms fail to properly neutralize malicious user input before it is rendered back to other users. The flaw specifically impacts versions of the Weather Layer application ranging from an unspecified starting point through version 4.2.1, indicating a potentially wide attack surface across multiple iterations of the software.
The technical implementation of this vulnerability stems from inadequate input handling within the application's data processing pipeline. When users submit data through web forms or API endpoints, the application fails to properly sanitize or escape potentially malicious content before storing and subsequently displaying it within web pages. This creates an environment where attackers can inject malicious scripts that persist in the application's database and execute whenever other users view the affected content. The stored nature of this vulnerability means that the malicious payload remains active even after the initial injection, allowing for prolonged exploitation periods and broader impact.
From an operational perspective, this vulnerability poses significant risks to both application integrity and user security. Attackers can leverage this flaw to execute arbitrary JavaScript code in the context of other users' browsers, potentially enabling session hijacking, credential theft, data exfiltration, or redirection to malicious sites. The impact extends beyond individual user compromise to potential system-wide damage, particularly if the application handles sensitive weather data or user information. The vulnerability's persistence through stored data means that a single successful attack can affect multiple users over extended periods, making it particularly dangerous in environments where the application serves many users or contains confidential information.
The vulnerability aligns with CWE-79, which specifically addresses cross-site scripting flaws in web applications, and demonstrates characteristics consistent with the ATT&CK technique T1566.001 for initial access through malicious content. Organizations utilizing the MorganF Weather Layer should implement immediate mitigations including comprehensive input validation, output encoding, and the implementation of Content Security Policies to prevent script execution. Additionally, regular security audits and penetration testing should be conducted to identify similar vulnerabilities, while application updates should be prioritized to address the identified flaw. The remediation process must include thorough code review of input handling mechanisms and implementation of proper sanitization routines to ensure all user-provided data is properly neutralized before processing or storage.