CVE-2026-4127
MEDIUM
5,3
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: low
Availability: none
Description
AI Translation Available
The Speedup Optimization plugin for WordPress is vulnerable to Missing Authorization in all versions up to and including 1.5.9. The `speedup01_ajax_enabled()` function, which handles the `wp_ajax_speedup01_enabled` AJAX action, does not perform any capability check via `current_user_can()` and also lacks nonce verification. This is in contrast to other AJAX handlers in the same plugin (e.g., `speedup01_ajax_install_iox` and `speedup01_ajax_delete_cache_file`) which properly check for `install_plugins` and `manage_options` capabilities respectively. This makes it possible for authenticated attackers, with Subscriber-level access and above, to enable or disable the site's optimization module by sending a POST request to admin-ajax.
862
Missing Authorization
IncompleteCommon Consequences
Security Scopes Affected:
Confidentiality
Integrity
Access Control
Availability
Potential Impacts:
Read Application Data
Read Files Or Directories
Modify Application Data
Modify Files Or Directories
Gain Privileges Or Assume Identity
Bypass Protection Mechanism
Dos: Crash, Exit, Or Restart
Dos: Resource Consumption (Cpu)
Dos: Resource Consumption (Memory)
Dos: Resource Consumption (Other)
Applicable Platforms
Technologies:
AI/ML, Database Server, Not Technology-Specific, Web Server
https://plugins.trac.wordpress.org/browser/speedup-optimization/tags/1.5.9/spee…
https://plugins.trac.wordpress.org/browser/speedup-optimization/tags/1.5.9/spee…
https://plugins.trac.wordpress.org/browser/speedup-optimization/trunk/speedup-o…
https://plugins.trac.wordpress.org/browser/speedup-optimization/trunk/speedup-o…
https://www.wordfence.com/threat-intel/vulnerabilities/id/3f37c650-af0d-4474-9c…