CVE-2025-62970 identifies a missing authorization vulnerability in the Link Whisper Free plugin for WordPress, developed by Spencer Haws. This vulnerability arises from incorrectly configured access control security levels, which fail to properly verify whether a user has the necessary permissions to perform certain actions within the plugin. Link Whisper Free is a tool used primarily for internal link building and SEO optimization on WordPress sites. The affected versions include all versions up to and including 0.8.8. Because the plugin does not enforce proper authorization checks, an attacker with access to the WordPress backend or certain plugin endpoints could exploit this flaw to perform unauthorized operations, such as modifying link structures, accessing sensitive SEO data, or potentially injecting malicious content. Although no public exploits have been reported yet, the vulnerability is significant due to the potential impact on site integrity and SEO management. The lack of a CVSS score indicates that the vulnerability is newly disclosed and pending further assessment. The vulnerability does not require user interaction but does require some level of access to the WordPress environment, which could be obtained through compromised credentials or other means. The absence of patch links suggests that a fix is either pending or not yet publicly released. Organizations using this plugin should be vigilant and prepare to apply updates promptly once available.

For European organizations, this vulnerability poses risks primarily to websites using the Link Whisper Free plugin for SEO and content management. Unauthorized access could lead to manipulation of internal linking structures, which can degrade SEO performance and potentially redirect users to malicious sites if exploited maliciously. Confidentiality may be compromised if sensitive SEO data or site structure information is exposed. Integrity is at risk due to unauthorized modifications that could affect website content and search engine rankings. Availability impact is likely limited but could occur if the plugin or site functionality is disrupted. Given the widespread use of WordPress in Europe, especially among SMEs and digital marketing agencies, the vulnerability could affect a broad range of organizations. Attackers exploiting this flaw could gain footholds to further escalate privileges or conduct more damaging attacks. The lack of known exploits currently reduces immediate risk but does not eliminate the threat, especially as attackers often develop exploits following public disclosure.

1. Monitor official channels for patches or updates from Spencer Haws or the WordPress plugin repository and apply them immediately upon release. 2. In the interim, restrict access to WordPress admin interfaces and plugin management to trusted administrators only, using strong authentication methods such as MFA. 3. Review and harden WordPress user roles and permissions to minimize exposure to unauthorized users. 4. Implement web application firewalls (WAF) with rules that can detect and block suspicious requests targeting the Link Whisper plugin endpoints. 5. Conduct regular audits of plugin usage and access logs to detect any unauthorized activity early. 6. Consider temporarily disabling or replacing the Link Whisper Free plugin with alternative SEO tools until a patch is available. 7. Educate site administrators about the risks of unauthorized access and the importance of maintaining updated plugins and secure credentials.