CVE-2026-8438

June 6, 2026, 2:16 a.m.

7.2
High

Description

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.

Product(s) Impacted

Vendor Product Versions
Wordpress
  • All-in-one Security
  • *

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
a wordpress all-in-one_security / / / / / wordpress / /

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

Tags

CWE-79
[email protected]
2026-06-06
CVE-2026-8438

CVSS Score

7.2 / 10

CVSS Data - 3.1

  • Attack Vector: NETWORK
  • Attack Complexity: LOW
  • Privileges Required: NONE
  • Scope: CHANGED
  • Confidentiality Impact: LOW
  • Integrity Impact: LOW
  • Availability Impact: NONE

    • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

    View Vector String

Timeline

Published: June 6, 2026, 2:16 a.m.
Last Modified: June 6, 2026, 2:16 a.m.

Status : Received

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

[email protected]

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.