CVE-2025-13363 is a Cross-Site Request Forgery (CSRF) vulnerability identified in the IMAQ CORE plugin for WordPress, affecting all versions up to and including 1.2.1. The vulnerability stems from the absence of nonce validation on the URL structure settings update functionality within the plugin. Nonces are security tokens used to verify that requests to change settings originate from legitimate users and not from forged requests. Without this protection, an attacker can craft a malicious URL or web page that, when visited by a site administrator, triggers an unauthorized update to the plugin's URL structure settings. This attack does not require the attacker to be authenticated but does require the administrator to interact with the malicious content, such as clicking a link. The impact is limited to integrity, as attackers can modify plugin settings, potentially disrupting site functionality or enabling further attacks through misconfiguration. Confidentiality and availability are not directly affected. The CVSS v3.1 base score is 4.3, reflecting the network attack vector, low complexity, no privileges required, but requiring user interaction. No patches or exploit code are currently publicly available, and no known exploitation in the wild has been reported. The vulnerability was published on December 12, 2025, and assigned by Wordfence. This issue highlights the importance of implementing nonce validation in WordPress plugins to prevent CSRF attacks, especially on sensitive administrative functions.

For European organizations, this vulnerability poses a risk primarily to the integrity of WordPress sites using the IMAQ CORE plugin. Unauthorized changes to URL structure settings could lead to site misconfigurations, broken links, or redirect loops, potentially degrading user experience and damaging organizational reputation. In some cases, altered settings might be leveraged as a foothold for further attacks, such as injecting malicious redirects or facilitating phishing campaigns. Although the vulnerability does not directly compromise confidentiality or availability, the indirect effects on site reliability and trustworthiness can be significant. Organizations with public-facing websites, e-commerce platforms, or critical web services relying on this plugin are particularly vulnerable. The requirement for administrator interaction means that social engineering or phishing campaigns targeting site administrators could increase the likelihood of exploitation. Given the widespread use of WordPress across Europe, especially in small and medium enterprises, this vulnerability could have broad implications if left unaddressed.

1. Monitor for and apply security updates or patches from the plugin vendor as soon as they become available to address the nonce validation issue. 2. Until a patch is released, restrict administrative access to trusted networks or VPNs to reduce exposure to CSRF attacks. 3. Implement web application firewalls (WAFs) with rules designed to detect and block suspicious CSRF attempts targeting the plugin’s URL structure update endpoints. 4. Educate WordPress site administrators about the risks of clicking unsolicited links and phishing attempts, emphasizing caution with administrative accounts. 5. Review and harden WordPress security configurations, including limiting plugin usage to only necessary components and regularly auditing plugin permissions. 6. Consider deploying multi-factor authentication (MFA) for administrator accounts to reduce the risk of account compromise that could facilitate exploitation. 7. Use security plugins that enforce nonce validation or add additional CSRF protections as a temporary workaround if patching is delayed.