The WP Weixin plugin for WordPress, developed by Alexandre Froger, contains a stored cross-site scripting vulnerability identified as CVE-2025-30875. This vulnerability is due to improper neutralization of input during web page generation, which allows an attacker with high privileges to inject malicious scripts that are stored and later executed in the context of other users. The affected versions include all versions up to 1.3.16. The CVSS 3.1 base score is 5.9, reflecting network attack vector, low attack complexity, requirement for high privileges and user interaction, and partial impact on confidentiality, integrity, and availability. No patch or vendor advisory is provided in the data, and no known exploits have been reported.

Successful exploitation of this stored XSS vulnerability could allow an attacker with high privileges to execute arbitrary scripts in the context of other users, potentially leading to partial disclosure of information, modification of data, or disruption of service. The impact is rated medium with limited confidentiality, integrity, and availability effects. No evidence of active exploitation is currently known.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, limit high privilege user access and avoid interacting with untrusted content in the affected plugin. Monitor vendor channels for updates regarding patches or mitigations.