The Simple Download Monitor WordPress plugin before 3.9.5 does not escape the "File Thumbnail" post meta before outputting it in some pages, which could allow users with a role as low as Contributor to perform Stored Cross-Site Scripting attacks. Given the that XSS is triggered even when the Download is in a review state, contributor could make JavaScript code execute in a context of a reviewer such as admin and make them create a rogue admin account, or install a malicious plugin
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Simple Download Monitor Plugin | — | Update simple-download-monitor plugin to version 3.9.5, or a newer patched version | May 15, 2025 | Oct 5, 2021 |
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