CVE-2025-12632 is a stored Cross-Site Scripting (XSS) vulnerability identified in the RandomQuotr plugin for WordPress, developed by loveless. The vulnerability arises from improper input sanitization and insufficient output escaping in the plugin's admin settings, allowing authenticated users with administrator-level privileges to inject arbitrary JavaScript code into pages. This malicious code executes whenever any user accesses the compromised page, potentially leading to session hijacking, privilege escalation, or other malicious activities. The flaw specifically affects multi-site WordPress installations or those where the unfiltered_html capability is disabled, limiting the scope of impact. The vulnerability affects all versions up to and including 1.0.4. The CVSS 3.1 base score is 5.5 (medium severity), with an attack vector of network (remote exploitation), low attack complexity, requiring high privileges but no user interaction. The scope is changed, indicating that the vulnerability can affect resources beyond the initially compromised component. While no public exploits are currently known, the vulnerability poses a risk if exploited by malicious administrators or insiders. The absence of patches at the time of reporting necessitates immediate attention from site administrators. This vulnerability is categorized under CWE-79, which covers improper neutralization of input during web page generation leading to XSS.

For European organizations, the impact of CVE-2025-12632 is primarily on the confidentiality and integrity of web applications running WordPress multi-site installations with the RandomQuotr plugin. Successful exploitation can allow attackers with admin privileges to execute arbitrary scripts, potentially leading to session hijacking, unauthorized actions on behalf of users, or defacement. Although availability is not directly affected, the trustworthiness of affected websites can be compromised, which may lead to reputational damage and regulatory scrutiny under GDPR if user data is exposed or manipulated. The requirement for administrator-level access limits the risk from external attackers but increases the threat from insider attacks or compromised admin accounts. Organizations relying on WordPress multi-site environments for internal portals, customer-facing sites, or content management should consider this vulnerability a moderate risk that could facilitate further attacks if combined with credential theft or privilege escalation. The lack of known exploits reduces immediate risk but does not eliminate the potential for future exploitation.

To mitigate CVE-2025-12632, European organizations should first verify if they use the RandomQuotr plugin in multi-site WordPress installations or have unfiltered_html disabled. Since no patches are currently available, administrators should consider temporarily disabling or removing the plugin to eliminate the attack surface. Restrict administrator access strictly to trusted personnel and enforce strong authentication mechanisms such as multi-factor authentication to reduce the risk of compromised admin accounts. Implement web application firewalls (WAFs) with rules to detect and block suspicious script injections in admin pages. Regularly audit admin settings and plugin configurations for unauthorized changes. Monitor logs for unusual activity related to admin users or script execution. Educate administrators about the risks of XSS and the importance of input validation and output encoding. Once a patch is released, apply it promptly. Additionally, consider deploying Content Security Policy (CSP) headers to limit the impact of potential script injections.