The Insert Headers and Footers Code – HT Script WordPress plugin suffers from a stored cross-site scripting vulnerability (CWE-79) due to improper neutralization of input during web page generation. Authenticated attackers with Author-level privileges or above can inject malicious scripts into pages, which execute in the context of users visiting those pages. This vulnerability exists in all plugin versions up to and including 1.1.6. The CVSS 3.1 base score is 6.4, reflecting network attack vector, low attack complexity, required privileges at the Author level, no user interaction, and impacts on confidentiality and integrity with no availability impact. No patch or official fix has been documented in the provided data.

An attacker with Author-level access can inject persistent malicious scripts into pages, potentially leading to unauthorized actions or data exposure for users who view those pages. The impact affects confidentiality and integrity but does not affect availability. Since the vulnerability requires authenticated access at a moderate privilege level, the risk is medium. There are no known exploits in the wild reported at this time.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict Author-level access to trusted users only and consider monitoring for suspicious script injections. Avoid granting unnecessary privileges to users. Follow updates from the plugin vendor or WordPress security advisories for a patch or official mitigation.