CVE-2025-58805 is a medium-severity Stored Cross-Site Scripting (XSS) vulnerability affecting the OTWthemes Widgetize Pages Light plugin, versions up to 3.0. The vulnerability arises from improper neutralization of input during web page generation, classified under CWE-79. Specifically, the plugin fails to adequately sanitize or encode user-supplied input before rendering it on web pages, allowing attackers to inject malicious scripts that are stored persistently. When other users or administrators access the affected pages, the malicious scripts execute in their browsers, potentially leading to session hijacking, credential theft, or unauthorized actions performed with the victim's privileges. The CVSS 3.1 base score is 5.9, reflecting a network attack vector with low attack complexity but requiring high privileges and user interaction, and the vulnerability impacts confidentiality, integrity, and availability with a scope change. No known exploits are currently reported in the wild, and no patches have been published yet. The vulnerability affects websites using the Widgetize Pages Light plugin, which is commonly used in WordPress environments to create customizable widgetized pages. Given the nature of stored XSS, the threat can be leveraged to compromise administrative users or site visitors, potentially leading to broader compromise of the web application or user accounts.

For European organizations, especially those relying on WordPress sites with the Widgetize Pages Light plugin, this vulnerability poses a significant risk. Stored XSS can lead to unauthorized access to sensitive information, including user credentials and personal data, which is critical under GDPR regulations. Exploitation could result in data breaches, reputational damage, and regulatory penalties. Additionally, attackers could leverage the vulnerability to perform actions on behalf of legitimate users, potentially disrupting business operations or spreading malware. Organizations in sectors with high web presence such as e-commerce, media, and public services are particularly at risk. The requirement for high privileges to exploit somewhat limits the attack surface but does not eliminate risk, as compromised or careless administrators could be targeted. The scope change in CVSS indicates that the vulnerability could affect components beyond the initially vulnerable plugin, potentially impacting the entire web application environment.

1. Immediate mitigation should include auditing all instances of the Widgetize Pages Light plugin and disabling or restricting access to affected pages until a patch is available. 2. Implement strict input validation and output encoding on all user-supplied data within the plugin or via web application firewalls (WAFs) to block malicious payloads. 3. Enforce the principle of least privilege by limiting administrative access to trusted personnel and using multi-factor authentication to reduce the risk of privilege escalation. 4. Monitor web server and application logs for unusual activity indicative of XSS exploitation attempts. 5. Educate site administrators and users about the risks of XSS and safe browsing practices. 6. Once available, promptly apply official patches or updates from OTWthemes. 7. Consider deploying Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts. 8. Conduct regular security assessments and penetration testing focused on input validation and XSS vulnerabilities.