CVE-2026-8438The All-In-One Security (AIOS) – Security and Firewall plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to and including 5.4.7.
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
The All-In-One Security (AIOS) – Security and Firewall plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to and including 5.4.7. This is due to insufficient input sanitization in the get_rest_route() function and missing output escaping in the column_default() method of the debug log list table. When the 'Disable REST API for non-logged in users' feature (aiowps_disallow_unauthorized_rest_requests) is enabled alongside debug logging (aiowps_enable_debug), an unauthenticated attacker can embed arbitrary HTML or JavaScript in the REST request path. The path is retrieved via urldecode($_SERVER['REQUEST_URI']), which decodes URL-encoded payloads into literal HTML characters. This decoded, unsanitized value is concatenated directly into a debug log message and stored in the database. When an administrator navigates to the AIOS Dashboard Debug Logs page, the column_default() method returns the raw database value without escaping, and the parent list table echoes it directly, causing JavaScript execution in the administrator's browser session. This makes it possible for unauthenticated attackers to inject arbitrary web scripts that execute when an administrator views the debug log page, enabling nonce theft, privileged AJAX/REST actions, and potential full site compromise.
- CVSS
- 7.2 HIGH (v3.1, NVD)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)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Deferred
- Record last updated
- Jul 23, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
No affected products are listed yet.
References
- https://plugins.trac.wordpress.org/browser/all-in-one-wp-security-and-firewall/tags/5.4.6/admin/wp-security-list-debug.php#L43
- https://plugins.trac.wordpress.org/browser/all-in-one-wp-security-and-firewall/tags/5.4.6/classes/wp-security-debug-logger.php#L81
- https://plugins.trac.wordpress.org/browser/all-in-one-wp-security-and-firewall/tags/5.4.6/classes/wp-security-general-init-tasks.php#L887
- https://plugins.trac.wordpress.org/browser/all-in-one-wp-security-and-firewall/tags/5.4.6/classes/wp-security-utility.php#L1547
- https://plugins.trac.wordpress.org/browser/all-in-one-wp-security-and-firewall/trunk/admin/wp-security-list-debug.php#L43
- https://plugins.trac.wordpress.org/browser/all-in-one-wp-security-and-firewall/trunk/classes/wp-security-debug-logger.php#L81
- https://plugins.trac.wordpress.org/browser/all-in-one-wp-security-and-firewall/trunk/classes/wp-security-general-init-tasks.php#L887
- https://plugins.trac.wordpress.org/browser/all-in-one-wp-security-and-firewall/trunk/classes/wp-security-utility.php#L1547
- https://plugins.trac.wordpress.org/changeset/3558989/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/d2b7ed73-a654-40ef-8d80-6171393da8e7?source=cve
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.