CVE-2026-6174 is a stored cross-site scripting vulnerability in the CC Child Pages WordPress plugin, affecting all versions up to and including 2.1.1. The issue stems from improper neutralization of input during web page generation, specifically via the 'more' parameter. Authenticated attackers with at least Contributor privileges can inject arbitrary web scripts into pages, which execute when those pages are accessed by users. The vulnerability is classified under CWE-79 and has a CVSS 3.1 base score of 6.4 (AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N), indicating network attack vector, low attack complexity, requiring privileges, no user interaction, with scope changed and low impact on confidentiality and integrity, no impact on availability. No vendor patch or official remediation has been published yet.

An attacker with Contributor-level access or higher can exploit this vulnerability to inject malicious scripts into pages generated by the plugin. These scripts execute in the context of users viewing the affected pages, potentially leading to session hijacking, defacement, or other client-side attacks. The impact is limited to confidentiality and integrity with no availability impact. The vulnerability requires authenticated access, reducing the attack surface. No known exploits have been reported in the wild.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict Contributor-level access to trusted users only and consider disabling or replacing the CC Child Pages plugin if possible to mitigate risk.