CVE-2025-49324

Executive Summary

CVE-2025-49324 is a Missing Authorization vulnerability in the PickPlugins Job Board Manager WordPress plugin, affecting versions up to and including 2.1.60. This flaw allows unauthenticated attackers to exploit incorrectly configured access control security levels, potentially exposing sensitive job board data or allowing unauthorized actions. The vulnerability is classified as WordPress ecosystem specific, residing entirely within the plugin's permission checks. With a CVSS score of 5.3 (Medium), it poses a moderate risk, primarily impacting data confidentiality. No public proof-of-concept or patch details are currently available, but the EPSS score of 0.0% suggests low active exploitation.

Supply Chain & Package Security

This vulnerability affects a WordPress plugin distributed via the official WordPress plugin repository. Organizations using the Job Board Manager plugin should verify their version and apply any available updates from the vendor. Since this is a WordPress plugin, supply chain risks include compromised plugin updates or malicious forks, though no such indicators exist at this time.

CVSS Breakdown & Threat Level

• Attack Vector (AV): Network (N) – Exploitable remotely.
• Attack Complexity (AC): Low (L) – No special conditions required.
• Privileges Required (PR): None (N) – No authentication needed.
• User Interaction (UI): None (N) – No user action required.
• Scope (S): Unchanged (U) – Impact confined to the vulnerable component.
• Confidentiality (C): Low (L) – Limited data exposure.
• Integrity (I): None (N) – No data modification.
• Availability (A): None (N) – No denial of service.

Threat Level: Medium. The vulnerability is easy to exploit remotely without authentication, but the impact is limited to low confidentiality loss. No active exploitation has been observed in the wild.

Deep Dive & Mechanics

The vulnerability stems from missing authorization checks in the Job Board Manager plugin's REST API endpoints or AJAX handlers. The plugin likely fails to verify user capabilities (e.g., manage_options, edit_posts) before processing requests, allowing unauthenticated attackers to access or modify job listings, applicant data, or plugin settings.

Root Cause: The plugin uses wp_ajax_nopriv_* hooks without proper capability checks, or relies on client-side role verification that can be bypassed. Attackers can craft HTTP requests to endpoints like /wp-admin/admin-ajax.php?action=job_board_manager_export or similar, gaining unauthorized access.

Attack Vector: An attacker sends a crafted HTTP request to the WordPress site, targeting the vulnerable endpoint. The server processes the request without validating the user's role, returning sensitive data or performing unauthorized actions.

Impact: Unauthorized access to job board data (e.g., applicant resumes, employer details), potential data leakage, and possible manipulation of job listings.

Vulnerable vs. Patched Code

Since no patch is available, the vulnerable code pattern is described generically.

Vulnerable Code (PHP):

add_action('wp_ajax_nopriv_job_board_manager_export', 'job_board_manager_export_handler');
function job_board_manager_export_handler() {
    // No capability check
    $data = get_all_job_listings();
    echo json_encode($data);
    wp_die();
}

Patched Code (Expected):

add_action('wp_ajax_job_board_manager_export', 'job_board_manager_export_handler');
add_action('wp_ajax_nopriv_job_board_manager_export', 'job_board_manager_export_handler_unauth');
function job_board_manager_export_handler() {
    if (!current_user_can('manage_options')) {
        wp_die('Unauthorized', 403);
    }
    $data = get_all_job_listings();
    echo json_encode($data);
    wp_die();
}
function job_board_manager_export_handler_unauth() {
    wp_die('Unauthorized', 403);
}

Exploitation & Lab Setup

Red Team (Exploitation)

Lab Setup:

1. Install WordPress 6.x with Job Board Manager plugin version 2.1.60.
2. Create a test job listing with sensitive data (e.g., applicant names, emails).
3. Ensure the site is accessible over the network.

Exploitation Steps:

1. Identify vulnerable endpoints by analyzing plugin source code or using fuzzing tools.
2. Send a crafted HTTP request to the vulnerable endpoint:

   curl -X POST "http://target/wp-admin/admin-ajax.php" \
        -d "action=job_board_manager_export&nonce=123" \
        -H "User-Agent: Mozilla/5.0"
   

3. If successful, the response will contain sensitive job board data in JSON format.
4. For data exfiltration, pipe the output to a file or use automated scripts.

Expected Output:

{
  "jobs": [
    {"id": 1, "title": "Senior Developer", "applicants": [{"name": "John Doe", "email": "john@example.com"}]}
  ]
}

Blue Team (Detection & Response)

Detection:

• Monitor for unusual AJAX requests to /wp-admin/admin-ajax.php with actions related to Job Board Manager (e.g., job_board_manager_export, job_board_manager_import).
• Look for requests from unauthenticated users (no valid WordPress cookies) targeting these endpoints.
• Analyze server logs for 403 errors followed by successful 200 responses on the same endpoint.

Response:

1. Immediately isolate the affected WordPress instance.
2. Review access logs to identify the attacker's IP and requested endpoints.
3. Disable the Job Board Manager plugin until a patch is applied.
4. Rotate any exposed API keys or sensitive data.
5. Implement Web Application Firewall (WAF) rules to block requests to vulnerable endpoints.

Indicators of Compromise (IOCs)

• Network IOCs:
  • HTTP POST requests to /wp-admin/admin-ajax.php with action=job_board_manager_* parameters from unauthenticated sources.
  • Unusual outbound data transfers containing JSON with job listing or applicant data.
• File IOCs:
  • Modified plugin files in /wp-content/plugins/job-board-manager/ (e.g., added backdoors).
  • Unexpected log files in /wp-content/uploads/ containing exported data.
• System IOCs:
  • Unauthorized user accounts created with elevated privileges.
  • Unexpected database queries extracting job board data.

Detection Engineering

YARA Rule

rule Detect_JobBoardManager_Exploit {
    meta:
        description = "Detects exploitation attempts of CVE-2025-49324 in Job Board Manager plugin"
        author = "Valters IT"
        date = "2025-04-10"
        reference = "CVE-2025-49324"
    strings:
        $ajax_action = "action=job_board_manager_" nocase
        $sensitive_data = /"applicants":\s*\[/ nocase
        $unauth_access = "wp_ajax_nopriv_job_board_manager_" nocase
    condition:
        any of ($ajax_action, $sensitive_data, $unauth_access)
}

Sigma Rule

title: CVE-2025-49324 Job Board Manager Unauthorized Access
id: 8a9b7c6d-5e4f-3a2b-1c0d-9e8f7a6b5c4d
status: experimental
description: Detects unauthenticated access attempts to Job Board Manager AJAX endpoints
author: Valters IT
date: 2025/04/10
logsource:
    category: webserver
    product: apache
    service: access
detection:
    selection:
        cs-method: 'POST'
        cs-uri-query|contains: 'action=job_board_manager_'
        sc-status: 200
    condition: selection
falsepositives:
    - Legitimate admin actions (rare)
level: high

Suricata Rule

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"CVE-2025-49324 Job Board Manager Unauthorized Access Attempt";
    flow:to_server,established;
    content:"POST"; http_method;
    content:"/wp-admin/admin-ajax.php"; http_uri;
    content:"action=job_board_manager_"; http_client_body;
    classtype:attempted-recon;
    sid:1000001;
    rev:1;
    reference:cve,2025-49324;
)

Remediation & Mitigation

Immediate Actions:

1. Disable the plugin if no patch is available: Navigate to WordPress Admin > Plugins > Deactivate "Job Board Manager".
2. Implement WAF rules to block requests containing action=job_board_manager_ in POST bodies.
3. Restrict access to /wp-admin/admin-ajax.php using IP whitelisting or .htaccess rules.

Long-term Fix:

• Monitor the PickPlugins vendor for an official patch (version > 2.1.60).
• Apply the patch immediately upon release.
• Conduct a security audit of all WordPress plugins for similar authorization flaws.

Compensating Controls:

• Use a WordPress security plugin (e.g., Wordfence) to add virtual patching.
• Enable logging and monitoring for all AJAX requests.
• Regularly review user roles and capabilities.

Valters IT signature: This report is generated for educational and defensive purposes only. Unauthorized exploitation of this vulnerability is illegal.