CVE-2026-9253 is a stored cross-site scripting vulnerability in the WP Cost Estimation & Payment Forms Builder (E&P Forms) WordPress plugin. The vulnerability exists in the 'customerInfos' parameter due to improper neutralization of input during web page generation (CWE-79). This allows unauthenticated attackers to inject arbitrary web scripts that execute in the context of users visiting the injected pages. The CVSS 3.1 base score is 7.2, reflecting network attack vector, low attack complexity, no privileges or user interaction required, and impacts on confidentiality and integrity with no availability impact. No official patch or remediation level is currently indicated by the vendor advisory or other sources.

Successful exploitation enables an unauthenticated attacker to execute arbitrary scripts in the context of users accessing the affected pages, potentially leading to data disclosure or manipulation of user interactions. The vulnerability impacts confidentiality and integrity but does not affect availability. There are no known exploits in the wild at this time.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider disabling or restricting access to the vulnerable plugin or parameter to mitigate risk. Monitor vendor communications for updates on patches or official mitigations.