This vulnerability in Arash Heidari Text Advertisements (up to version 2.1) involves improper input sanitization during web page generation, leading to stored cross-site scripting (XSS). An attacker could inject malicious scripts that persist in the application and execute in the context of users viewing the affected pages. The CVSS 3.1 base score is 6.5, reflecting network attack vector, low attack complexity, requiring privileges and user interaction, and impacts on confidentiality, integrity, and availability at a low level.

Successful exploitation could allow an attacker to execute arbitrary scripts in the context of the victim's browser, potentially leading to information disclosure, session hijacking, or other impacts on confidentiality, integrity, and availability. The impact is rated as medium severity. There are no reports of active exploitation in the wild.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider applying input validation or output encoding workarounds if feasible. Monitor vendor communications for updates regarding patches or official mitigations.