Vulnerability Description
The Download Monitor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Cross-Origin postMessage to Admin Editor in all versions up to, and including, 5.2.10 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This requires the attacker to trick an authenticated Administrator into visiting an attacker-controlled page that targets an open Download edit screen, after which the payload is persisted unfiltered via the Administrator's unfiltered_html capability and later emitted verbatim to the frontend by the [download_data] shortcode's unescaped post_content render path.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/download-monitor/tags/5.2.10/assets/j
- https://plugins.trac.wordpress.org/browser/download-monitor/tags/5.2.10/assets/j
- https://plugins.trac.wordpress.org/browser/download-monitor/tags/5.2.10/src/Admi
- https://plugins.trac.wordpress.org/browser/download-monitor/tags/5.2.10/src/Shor
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3716767%40download-mo
- https://www.wordfence.com/threat-intel/vulnerabilities/id/59d4c073-af86-4e60-87f
FAQ
What is CVE-2026-100182?
CVE-2026-100182 is a vulnerability with a CVSS score of 7.2 (HIGH). The Download Monitor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Cross-Origin postMessage to Admin Editor in all versions up to, and including, 5.2.10 due to insufficient inp...
How severe is CVE-2026-100182?
CVE-2026-100182 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-100182?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.