The vulnerability CVE-2025-31767 affects OTWthemes Post Custom Templates Lite plugin versions up to 1.14. It is a stored cross-site scripting (XSS) flaw caused by improper input neutralization during web page generation. An attacker with low privileges can inject malicious scripts that are stored and later executed in the context of other users, potentially leading to partial confidentiality, integrity, and availability impacts. The CVSS 3.1 vector indicates network attack vector, low attack complexity, low privileges required, user interaction required, and scope changed, with low impact on confidentiality, integrity, and availability.

Successful exploitation could allow an attacker to execute arbitrary scripts in the context of other users, potentially leading to partial compromise of confidentiality, integrity, and availability of affected systems. However, exploitation requires user interaction and low privileges, limiting the scope of impact. There are no known exploits in the wild currently.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should exercise caution with untrusted input and consider applying temporary mitigations such as input validation or disabling the affected plugin if feasible.