CVE-2025-24654: Squirrly SEO Auth Bypass Vulnerability

CVE-2025-24654 Overview

CVE-2025-24654 is a Missing Authorization vulnerability [CWE-862] in the SEO Plugin by Squirrly SEO for WordPress. The flaw affects all versions up to and including 12.4.07. Authenticated attackers with low-privilege access can invoke plugin functionality that lacks proper capability checks, leading to broken access control across confidentiality, integrity, and availability boundaries.

The vulnerability is exploitable over the network with low attack complexity and requires no user interaction. Patchstack tracks this issue as a broken access control flaw in the WordPress plugin ecosystem.

Critical Impact
Authenticated low-privilege users can reach privileged plugin operations, enabling full compromise of WordPress sites running vulnerable Squirrly SEO releases.

Affected Products

Squirrly SEO Plugin for WordPress, versions up to and including 12.4.07
WordPress sites with the squirrly-seo plugin enabled
Installations exposed to authenticated subscriber-level or higher accounts

Discovery Timeline

2025-03-03 - CVE-2025-24654 published to the National Vulnerability Database
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-24654

Vulnerability Analysis

The Squirrly SEO plugin exposes plugin actions that fail to enforce authorization checks before executing privileged operations. CWE-862 (Missing Authorization) describes this class of weakness: the software does not perform an authorization check when an actor attempts to access a resource or perform an action.

In practice, an authenticated user with minimal capabilities can invoke endpoints intended for administrators. Because the impact extends to confidentiality, integrity, and availability, an attacker can read protected data, alter plugin or SEO configuration, and disrupt site behavior.

The issue is network-reachable through standard WordPress AJAX and REST interfaces. Attackers do not need to bypass user interaction prompts or chain additional vulnerabilities.

Root Cause

The root cause is the absence of capability validation in one or more plugin handlers. WordPress relies on current_user_can() checks and nonce verification to gate privileged actions. When these guards are missing or rely solely on authentication status, any logged-in user can trigger administrative behavior.

Attack Vector

An attacker first obtains any authenticated account on the target WordPress instance. This can be a subscriber account created through open registration. The attacker then issues HTTP requests to the unprotected plugin endpoints, passing parameters that modify plugin state or extract sensitive data.

The vulnerability mechanism is described in the Patchstack Squirrly SEO Vulnerability advisory. No public proof-of-concept code is currently listed in the enriched data.

Detection Methods for CVE-2025-24654

Indicators of Compromise

Unexpected modifications to Squirrly SEO settings, redirects, or metadata performed by non-administrator accounts
WordPress audit log entries showing low-privilege users invoking admin-ajax.php or REST routes tied to the squirrly-seo plugin
New or altered SEO snippets, sitemaps, or canonical URLs that point to attacker-controlled domains

Detection Strategies

Inventory WordPress sites and identify installations of squirrly-seo at version 12.4.07 or earlier
Review web server access logs for POST requests to plugin endpoints originating from subscriber or contributor accounts
Correlate authentication events with privileged plugin actions to identify capability mismatches

Monitoring Recommendations

Enable WordPress audit logging to capture plugin setting changes and user role activity
Forward web server and WordPress logs to a centralized analytics platform for correlation across hosts
Alert on anomalous spikes in admin-ajax.php requests tied to the Squirrly SEO action namespace

How to Mitigate CVE-2025-24654

Immediate Actions Required

Update the Squirrly SEO plugin to a release later than 12.4.07 as soon as a fixed version is available from the vendor
Audit all WordPress user accounts and remove unused or untrusted low-privilege accounts
Disable open user registration on sites that do not require it

Patch Information

The vendor tracks fixes for this broken access control issue through the WordPress plugin repository. Administrators should consult the Patchstack advisory for Squirrly SEO for the confirmed fixed version and upgrade guidance. Apply the update through the WordPress admin dashboard or via wp-cli plugin update squirrly-seo.

Workarounds

Deactivate the Squirrly SEO plugin until a patched release is installed if immediate updating is not possible
Restrict access to wp-admin and admin-ajax.php by IP allowlisting at the web server or WAF layer
Enforce strong authentication and remove subscriber-level self-registration where business requirements allow

bash

# Configuration example
wp plugin update squirrly-seo
wp plugin deactivate squirrly-seo  # temporary workaround if no patch is available