CVE-2025-22293 in Gutentor Plugin
Summary
by MITRE • 01/07/2025
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Gutentor Gutentor allows DOM-Based XSS.This issue affects Gutentor: from n/a through 3.4.0.
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Analysis
by VulDB Data Team • 02/15/2025
The vulnerability identified as CVE-2025-22293 represents a critical cross-site scripting weakness within the Gutentor plugin for WordPress, specifically manifesting as a DOM-based XSS flaw that undermines web application security. This vulnerability resides in the improper neutralization of input during web page generation processes, creating an avenue for malicious actors to inject and execute arbitrary scripts within the context of affected user sessions. The issue affects all versions of Gutentor from the initial release through version 3.4.0, indicating a prolonged period during which the plugin remained susceptible to this class of attack. The vulnerability's classification as DOM-based XSS places it within CWE-79, which specifically addresses cross-site scripting vulnerabilities where input is processed in the browser rather than on the server side, making it particularly insidious as the malicious code executes within the victim's browser environment.
The technical exploitation of this vulnerability occurs when the Gutentor plugin fails to properly sanitize or escape user-controllable input parameters that are subsequently reflected or embedded within dynamically generated web pages. This flaw allows attackers to craft malicious payloads that, when processed by the plugin, get executed in the browser context of authenticated users. The DOM-based nature of this vulnerability means that the malicious script is injected into the Document Object Model itself rather than being reflected in HTTP response headers or server-side rendered content, making detection and prevention more challenging. Attackers can leverage this weakness by manipulating URL parameters or other input vectors that the plugin uses to generate dynamic content, potentially leading to session hijacking, credential theft, or redirection to malicious sites. The vulnerability's impact extends beyond simple script execution as it can enable more sophisticated attacks such as defacement of content or the establishment of backdoors within the affected WordPress environment.
The operational impact of CVE-2025-22293 is significant for WordPress administrators and users who rely on Gutentor for content creation and management. When exploited, this vulnerability can compromise user sessions, allowing attackers to perform unauthorized actions on behalf of legitimate users with the privileges of those users. The attack surface is particularly concerning given that Gutentor is a widely used plugin for WordPress sites, meaning that a successful exploitation could potentially affect numerous websites simultaneously. The vulnerability's persistence across multiple versions suggests that administrators may have been operating with exposed systems for an extended period, increasing the risk of successful attacks and potential data breaches. Organizations using this plugin face potential reputational damage, regulatory compliance issues, and financial losses due to the exploitation of this vulnerability. The nature of DOM-based XSS also means that the attack can be delivered through various vectors including phishing emails, compromised advertisements, or malicious links shared within the WordPress ecosystem, making it particularly difficult to defend against through traditional network-level security measures.
Mitigation strategies for CVE-2025-22293 require immediate action from affected organizations to update their Gutentor plugin to the latest version where the vulnerability has been addressed. The recommended approach involves implementing comprehensive input validation and output escaping mechanisms that prevent malicious scripts from being executed within the browser context. Security professionals should also consider implementing Content Security Policy headers to limit script execution and reduce the impact of successful XSS attacks. The vulnerability's classification under ATT&CK technique T1059.007 for script injection and T1531 for credential access highlights the importance of layered security approaches. Organizations should conduct thorough security assessments of their WordPress installations to identify other potential vulnerabilities and ensure that all plugins and themes are maintained at current versions. Additionally, implementing web application firewalls and regular security monitoring can help detect and prevent exploitation attempts. The remediation process should include comprehensive testing to ensure that the update does not introduce compatibility issues with existing site functionality while also verifying that proper input sanitization mechanisms are now in place to prevent similar vulnerabilities from emerging in the future.