CVE-2025-13853 is a stored cross-site scripting vulnerability in the Nearby Now Reviews WordPress plugin by lnbadmin1, affecting all versions up to 5.2. The vulnerability exists due to improper neutralization of input in the 'data_tech' parameter of the nn-tech shortcode, allowing authenticated users with Contributor-level access or higher to inject arbitrary web scripts. These scripts execute when any user accesses the injected page, potentially leading to session hijacking or other script-based attacks. The CVSS 3.1 vector indicates network attack vector, low attack complexity, privileges required at the contributor level, no user interaction needed, and impacts confidentiality and integrity with no availability impact.

An attacker with Contributor-level or higher privileges can exploit this vulnerability to inject malicious scripts that execute in the context of other users viewing the affected pages. This can lead to unauthorized actions such as session hijacking or data manipulation. The impact is limited to confidentiality and integrity, with no direct availability impact. Since the vulnerability requires authenticated access, the attack surface is somewhat limited but still significant in multi-user WordPress environments.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict Contributor-level access to trusted users only and consider disabling or removing the Nearby Now Reviews plugin if possible. Monitor for updates from the vendor or WordPress plugin repository for a security patch addressing this issue.