The Easy Digital Downloads – Sell Digital Files & Subscriptions plugin for WordPress suffers from a stored XSS vulnerability (CWE-79) due to improper neutralization of input during web page generation. The currency value field is not properly sanitized or escaped, enabling authenticated administrators to inject malicious scripts. These scripts execute in the context of users visiting the injected pages, potentially leading to session hijacking or other script-based attacks. The vulnerability affects all plugin versions up to and including 3.3.2 and is limited to multi-site setups or installations with disabled unfiltered_html capability.

An attacker with administrator privileges on affected WordPress installations can exploit this vulnerability to inject persistent malicious scripts via the currency value. These scripts execute in the browsers of users who access the compromised pages, potentially leading to information disclosure or session hijacking. The impact is limited by the requirement for high privileges (administrator) and specific WordPress configurations (multi-site or unfiltered_html disabled). 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 available, restrict administrator access to trusted users only and consider enabling unfiltered_html capability if feasible. Monitor vendor channels for updates or patches addressing this vulnerability.