CVE-2026-100182Download Monitor <= 5.2.10 - Unauthenticated Stored Cross-Site Scripting via Cross-Origin postMessage to Admin Editor
Updated under an hour ago ()
Does this affect you?
It affects wpchill Download Monitor. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.31%, higher than 22% of scored CVEs.
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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
- 7.2 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- Weakness (CWE)
- CWE-79
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.31% (percentile 22)
- Assigned by
- Wordfence
- NVD analysis
- Deferred
- Record last updated
- Oct 2, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
wpchill Download Monitor wpchill:download_monitor (from the name) | through 5.2.10 | CNA record |
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/59d4c073-af86-4e60-87f5-94cc46f407a2?source=cve
- https://plugins.trac.wordpress.org/browser/download-monitor/tags/5.2.10/assets/js/download-operations.js#L34
- https://plugins.trac.wordpress.org/browser/download-monitor/tags/5.2.10/assets/js/download-operations.js#L11
- https://plugins.trac.wordpress.org/browser/download-monitor/tags/5.2.10/src/Shortcodes.php#L285
- https://plugins.trac.wordpress.org/browser/download-monitor/tags/5.2.10/src/Admin/AdminScripts.php#L56
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3716767%40download-monitor&new=3716767%40download-monitor
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.