CVE-2025-3715 identifies a stored Cross-Site Scripting (XSS) vulnerability in the Bold Page Builder plugin for WordPress, present in all versions up to and including 5.3.5. The vulnerability arises from improper neutralization of input during web page generation, specifically through the data-text parameter. This parameter lacks sufficient input sanitization and output escaping, allowing authenticated users with Contributor-level privileges or higher to inject arbitrary JavaScript code into pages. Because the malicious script is stored persistently, it executes whenever any user accesses the infected page, potentially compromising user sessions, stealing cookies, or performing unauthorized actions on behalf of the user. The vulnerability has a CVSS 3.1 base score of 6.4, reflecting medium severity, with an attack vector of network (remote), low attack complexity, requiring privileges (Contributor or above), no user interaction, and scope change due to impact on other components. Although no public exploits are currently known, the vulnerability poses a significant risk in environments with multiple contributors or where users have elevated privileges. The root cause is insufficient input validation and output encoding in the plugin’s handling of the data-text parameter, a common issue in web applications leading to XSS. Mitigation requires patching the plugin once updates are available or applying strict input validation and output encoding controls. Additionally, monitoring for suspicious script injections and limiting contributor privileges can reduce risk.

The primary impact of CVE-2025-3715 is the potential for attackers with Contributor-level access to inject persistent malicious scripts into WordPress pages, which execute in the context of any user viewing those pages. This can lead to session hijacking, credential theft, unauthorized actions performed on behalf of users, defacement, or distribution of malware. The vulnerability compromises confidentiality and integrity but does not affect availability. Because the attack requires authenticated access, the risk is somewhat mitigated compared to unauthenticated attacks; however, many WordPress sites allow multiple contributors or editors, increasing the attack surface. Exploitation could damage organizational reputation, lead to data breaches, and facilitate further attacks within the network. The scope includes all websites using the vulnerable Bold Page Builder plugin, which may be significant given WordPress’s large market share in content management systems. Organizations with public-facing websites, especially those with multiple content contributors, are at higher risk. The absence of known exploits in the wild suggests limited immediate threat but also highlights the need for proactive remediation before attackers develop exploits.

1. Immediately update the Bold Page Builder plugin to a patched version once released by the vendor. 2. Until a patch is available, restrict Contributor-level and higher privileges to trusted users only, minimizing the risk of malicious script injection. 3. Implement Web Application Firewall (WAF) rules to detect and block suspicious payloads targeting the data-text parameter. 4. Employ Content Security Policy (CSP) headers to limit the execution of unauthorized scripts on affected sites. 5. Conduct regular security audits and code reviews of user-generated content to detect injected scripts. 6. Use security plugins that sanitize inputs and outputs to add an additional layer of defense. 7. Educate content contributors about the risks of injecting untrusted content and enforce strict content submission guidelines. 8. Monitor website logs and user activity for unusual behavior indicative of exploitation attempts. 9. Consider isolating or sandboxing user-generated content areas to limit script execution impact. 10. Backup website data regularly to enable quick recovery in case of compromise.