Nginx Cache Purge Preload <= 2.1.1 - Authenticated (Administrator+) Remote Code Execution

2025-07-21 20:50

vulnmode2

Strategic Overview

Status

Patched in 2.1.3

Affected PluginNginx Cache Purge Preload

Affected Version<= 2.1.1

CVSS7.2High

CVECVE-2025-6213

View all Nginx Cache Purge Preload vulnerabilities

Vulnerability Overview

The Nginx Cache Purge Preload plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 2.1.1 via the 'nppp_preload_cache_on_update' function. This is due to insufficient sanitization of the $_SERVER['HTTP_REFERERER'] parameter passed from the 'nppp_handle_fastcgi_cache_actions_admin_bar' function. This makes it possible for authenticated attackers, with Administrator-level access and above, to execute code on the server.

Technical Analysis

REMEDIATION: Update to version 2.1.3, or a newer patched version --- IDENTIFIER: CWE-94 (Improper Control of Generation of Code ('Code Injection')) The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

External References

https://www.cve.org/CVERecord?id=CVE-2025-6213 https://www.wordfence.com/threat-intel/vulnerabilities/id/bbe8c101-5e0a-4ba7-8ff7-4c8ed01e9ef5

CVSS Vector

7.2

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredHigh
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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