CVE-2025-14063 identifies a reflected Cross-Site Scripting (XSS) vulnerability in the SEO Links Interlinking plugin for WordPress, specifically through the 'google_error' parameter. This vulnerability exists due to insufficient input validation and output escaping, which allows attackers to inject arbitrary JavaScript code into web pages generated by the plugin. Because the vulnerability is reflected, the malicious payload is embedded in a crafted URL that, when clicked by a victim, causes the injected script to execute in the context of the victim's browser session. The vulnerability affects all versions up to and including 1.7.5 of the plugin. The attack vector is remote and requires no authentication, but it does require user interaction (clicking a malicious link). The CVSS 3.1 base score is 6.1, indicating a medium severity level with a vector string AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N, meaning the attack is network-based, low complexity, no privileges required, user interaction required, scope changed, with low impact on confidentiality and integrity, and no impact on availability. Although no known exploits have been reported in the wild, the vulnerability poses a risk of session hijacking, credential theft, or phishing attacks if exploited. The plugin is widely used in WordPress sites focused on SEO link management, making the vulnerability relevant to many websites globally. The vulnerability was published on January 28, 2026, and was reserved in December 2025 by Wordfence. No official patches or updates are listed yet, so mitigation relies on workarounds or disabling the plugin until a fix is available.

The primary impact of this vulnerability is the potential compromise of user confidentiality and integrity through the execution of arbitrary scripts in the victim's browser. Attackers can leverage this to steal session cookies, perform actions on behalf of the user, or redirect users to malicious sites, facilitating phishing or malware distribution. Since the vulnerability is reflected XSS, it requires user interaction, limiting automated widespread exploitation but still posing a significant risk to site visitors. Organizations running affected versions of the SEO Links Interlinking plugin expose their users to these risks, potentially damaging user trust and leading to data breaches or account compromises. The vulnerability does not affect system availability directly but can indirectly cause reputational damage and loss of business. Given WordPress's global popularity and the plugin's SEO focus, websites in sectors like e-commerce, media, and marketing are particularly vulnerable. The lack of authentication requirement and low attack complexity increase the likelihood of exploitation once a patch is available or proof-of-concept code is published.

Organizations should immediately assess their WordPress installations for the presence of the SEO Links Interlinking plugin and verify the version in use. Until an official patch is released, administrators should consider disabling or uninstalling the plugin to eliminate the attack surface. If disabling is not feasible, implementing a Web Application Firewall (WAF) with custom rules to detect and block suspicious requests containing the 'google_error' parameter can mitigate exploitation attempts. Additionally, site owners should ensure that Content Security Policy (CSP) headers are configured to restrict script execution sources, limiting the impact of injected scripts. Educating users to avoid clicking suspicious links and monitoring web server logs for unusual query parameters can help detect attempted exploitation. Once a patch is released, prompt updating to the fixed version is critical. Developers maintaining the plugin should implement proper input validation and output encoding for all user-supplied parameters, especially those reflected in web pages. Regular security audits and automated scanning for XSS vulnerabilities in plugins are recommended to prevent similar issues.