All-In-One Security (AIOS) <= 5.4.7 - Unauthenticated Stored Cross-Site Scripting via REST API Request Path

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Summary

CVECVE-2026-8438
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-06 02:16:21 UTC
Updated2026-06-08 14:57:14 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 7.2 HIGH from [email protected]

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

EPSS: 0.001650000 probability, percentile 0.375010000 (date 2026-06-14)

Problem Types: CWE-79 | CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.2HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
3.1CNADECLARED7.2HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Davidanderson All-In-One Security AIOS Security And Firewall affected 5.4.7 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/all-in-one-wp-security-and-firewall/trunk/classes/wp-... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/all-in-one-wp-security-and-firewall/tags/5.4.6/admin/... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/all-in-one-wp-security-and-firewall/tags/5.4.6/classe... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/all-in-one-wp-security-and-firewall/trunk/classes/wp-... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/all-in-one-wp-security-and-firewall/trunk/classes/wp-... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/all-in-one-wp-security-and-firewall/tags/5.4.6/classe... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/all-in-one-wp-security-and-firewall/trunk/admin/wp-se... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/all-in-one-wp-security-and-firewall/tags/5.4.6/classe... [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/d2b7ed73-a654-40ef-8d80-61713... [email protected] www.wordfence.com
plugins.trac.wordpress.org/changeset/3558989 [email protected] plugins.trac.wordpress.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Dmitrii Ignatyev (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-05-12T19:06:11.000ZVendor Notified
CNA2026-06-05T11:51:22.000ZDisclosed
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