The Simple Download Monitor plugin before 3.5.4 for WordPress has XSS via the sdm_upload (aka Downloadable File) parameter in an edit action to wp-admin/post.php.
Severity
CVSS 3.0
5.4 medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS
1.0% chance of exploitation in the next 30 days; higher than 63% of CVEs (scores of 2026-10-31)