CVE-2025-49345 in WP-EasyArchives Plugin
Summary
by MITRE • 12/31/2025
Cross-Site Request Forgery (CSRF) vulnerability in mg12 WP-EasyArchives allows Stored XSS.This issue affects WP-EasyArchives: from n/a through 3.1.2.
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Analysis
by VulDB Data Team • 12/31/2025
The CVE-2025-49345 vulnerability represents a critical security flaw in the WP-EasyArchives WordPress plugin that demonstrates the dangerous intersection of cross-site request forgery and stored cross-site scripting vulnerabilities. This vulnerability exists within the mg12 WP-EasyArchives plugin and affects versions ranging from the initial release through version 3.1.2, creating a substantial attack surface for malicious actors seeking to exploit web application weaknesses. The vulnerability's classification as a stored XSS issue indicates that malicious payloads can be permanently stored on the server and subsequently executed whenever users access affected pages, making this particularly dangerous for high-traffic websites.
The technical implementation of this vulnerability stems from inadequate input validation and insufficient protection mechanisms within the plugin's administrative interfaces. When administrators or users interact with the plugin's features, the system fails to properly sanitize or validate user-supplied data before storing it in the database. This weakness allows attackers to inject malicious scripts that persist in the application's storage system, enabling the execution of arbitrary code in the context of authenticated users' browsers. The CSRF component of this vulnerability means that attackers can trick authenticated users into performing unintended actions without their knowledge or consent, effectively bypassing traditional authentication mechanisms that should protect against unauthorized modifications.
The operational impact of this vulnerability extends beyond simple script execution, as it creates multiple attack vectors for sophisticated exploitation. An attacker could potentially modify plugin settings, inject malicious code into archive pages, or even establish persistent backdoors within the WordPress environment. The stored nature of the XSS vulnerability means that once the malicious payload is injected, it can affect multiple users over extended periods without requiring repeated exploitation attempts. This characteristic aligns with CWE-79, which specifically addresses cross-site scripting vulnerabilities, and demonstrates how CSRF weaknesses can compound into more severe security incidents. The vulnerability's presence in a widely used plugin like WP-EasyArchives amplifies its potential impact, as many WordPress sites may be affected without proper patching or mitigation.
Organizations and administrators should immediately implement comprehensive mitigation strategies to address this vulnerability, beginning with immediate plugin updates to version 3.1.3 or later where available. The remediation process should include thorough code review of the plugin's handling of user input and implementation of proper sanitization techniques that align with OWASP's secure coding practices. Additionally, administrators should consider implementing Content Security Policy headers to limit the execution of unauthorized scripts and establish network-level protections through web application firewalls. The vulnerability's characteristics also suggest the need for regular security audits of third-party plugins and the implementation of automated patch management systems to prevent similar issues from arising in the future. This incident highlights the critical importance of maintaining up-to-date security practices and the necessity of robust input validation mechanisms across all web application components, particularly those handling user-generated content within WordPress environments where plugin security directly impacts overall site integrity.