CVE-2025-3815 is a stored cross-site scripting (XSS) vulnerability identified in the SurveyJS: Drag & Drop WordPress Form Builder plugin developed by devsoftbaltic. This vulnerability affects all versions up to and including 1.12.32. The root cause is insufficient sanitization and escaping of the 'id' parameter during web page generation, which allows malicious scripts to be stored persistently within the plugin's data. An attacker with authenticated Contributor-level privileges or higher can exploit this flaw by injecting arbitrary JavaScript code into the 'id' parameter. Once injected, the malicious script executes in the context of any user who visits the affected page, potentially compromising user sessions, stealing cookies, or performing unauthorized actions on behalf of the user. The vulnerability does not require user interaction beyond visiting the infected page and has a CVSS v3.1 base score of 6.4, reflecting medium severity. The attack vector is network-based with low attack complexity, requiring privileges but no user interaction. The scope is changed since the vulnerability can affect other components or users beyond the initial attacker. Currently, no public exploits are known, but the vulnerability is publicly disclosed and documented by Wordfence and CISA enrichment. The plugin is widely used in WordPress environments for creating complex forms, making this vulnerability relevant for many websites relying on SurveyJS for form management.

The impact of CVE-2025-3815 can be significant for organizations using the SurveyJS WordPress plugin. Successful exploitation allows attackers to execute arbitrary JavaScript in the browsers of users visiting the compromised pages, leading to session hijacking, theft of sensitive information such as authentication tokens, and unauthorized actions performed with the victim's privileges. This can result in data breaches, defacement of websites, or pivoting to further attacks within the affected environment. Since the vulnerability requires authenticated access at Contributor level or above, insider threats or compromised accounts pose a notable risk. The scope of impact extends to all users who access the infected pages, potentially including administrators and other privileged users, amplifying the damage. Organizations relying on this plugin for critical forms or customer interactions may face reputational damage and operational disruption if exploited. Although no known exploits are currently in the wild, the public disclosure increases the risk of exploitation attempts.

To mitigate CVE-2025-3815, organizations should first check for and apply any official patches or updates released by devsoftbaltic for the SurveyJS plugin. If no patch is available, immediate mitigation includes restricting Contributor-level access and above to trusted users only, minimizing the attack surface. Implementing a Web Application Firewall (WAF) with custom rules to detect and block suspicious input patterns targeting the 'id' parameter can help prevent exploitation. Additionally, site administrators should audit existing form entries and pages for injected scripts and remove any malicious content. Employing Content Security Policy (CSP) headers can reduce the impact of XSS by restricting script execution sources. Regularly monitoring logs for unusual activity related to form submissions or user privileges is recommended. Finally, educating users about the risks of privilege misuse and enforcing strong authentication controls will reduce the likelihood of account compromise.