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6.4
Simple Download Monitor plugin for WordPress: Stored XSS via Custom Field
CVE-2026-2383
Summary
The Simple Download Monitor plugin for WordPress is vulnerable to a security flaw that allows attackers to inject malicious code into pages. This could allow an attacker to access sensitive information or take control of a site. Update to version 4.0.6 or later to fix the issue.
Original title
The Simple Download Monitor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via custom field in all versions up to, and including, 4.0.5 due to insufficient input sanitization and...
Original description
The Simple Download Monitor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via custom field in all versions up to, and including, 4.0.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
nvd CVSS3.1
6.4
Vulnerability type
CWE-79
Cross-site Scripting (XSS)
- https://plugins.trac.wordpress.org/browser/simple-download-monitor/tags/4.0.3/sd...
- https://plugins.trac.wordpress.org/browser/simple-download-monitor/trunk/sdm-sho...
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new...
- https://www.wordfence.com/threat-intel/vulnerabilities/id/556e41d1-2c98-4175-87b...
Published: 27 Feb 2026 · Updated: 12 Mar 2026 · First seen: 6 Mar 2026