CVE-2025-9207 identifies an HTML injection vulnerability in the TI WooCommerce Wishlist plugin for WordPress, affecting all versions up to and including 2.10.0. The root cause is improper input validation (CWE-20) where the plugin accepts hidden form fields without restricting or sanitizing the input values before outputting them on wishlist pages. This allows unauthenticated attackers to inject arbitrary HTML code into wishlist items, which can be rendered by users viewing those pages. The vulnerability does not require any privileges or user interaction, making it remotely exploitable over the network. While the CVSS score is 5.3 (medium), the impact is primarily on data integrity, as injected HTML could alter page content, potentially deface the site, or be leveraged for social engineering attacks such as phishing. There is no direct impact on confidentiality or availability. No patches or known exploits are currently reported, but the plugin’s widespread use in e-commerce sites makes it a significant concern. The vulnerability highlights the importance of strict input validation and output encoding in web applications, especially in plugins that handle user-generated content. Organizations using this plugin should monitor for updates from the vendor and consider interim mitigations such as input filtering and content security policies to reduce risk.

For European organizations, particularly those operating e-commerce websites using WordPress and WooCommerce, this vulnerability poses a risk of website content manipulation. HTML injection can lead to defacement, misleading content presentation, or embedding malicious scripts indirectly via social engineering, potentially damaging brand reputation and customer trust. Although it does not directly expose sensitive data or disrupt service availability, the integrity compromise can facilitate phishing attacks or malware distribution if combined with other vulnerabilities or social engineering tactics. Retailers and service providers relying on the TI WooCommerce Wishlist plugin may face increased risk of customer deception or fraud attempts. The medium severity rating reflects the moderate but non-trivial impact on business operations and user trust. Given the plugin’s popularity in European markets, the vulnerability could be exploited to target high-traffic e-commerce platforms, amplifying the potential damage.

1. Monitor the vendor’s official channels for patches addressing CVE-2025-9207 and apply updates promptly once released. 2. Implement strict input validation and sanitization on all user-supplied data, especially hidden fields, to prevent injection of arbitrary HTML or scripts. 3. Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts and reduce the impact of injected HTML. 4. Use Web Application Firewalls (WAFs) with custom rules to detect and block suspicious input patterns targeting the wishlist functionality. 5. Conduct regular security audits and code reviews of third-party plugins to identify and remediate similar input validation issues. 6. Educate site administrators and developers on secure coding practices related to user input handling. 7. Consider disabling or replacing the TI WooCommerce Wishlist plugin with a more secure alternative if immediate patching is not feasible. 8. Monitor website content for unauthorized changes or defacements to enable rapid incident response.