WWordPress Vulnerability Database

Hong Kong Security Alert Elementor Addons XSS(CVE20258215)

WordPress Responsive Addons for Elementor plugin
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Plugin Name Responsive Addons for Elementor
Type of Vulnerability Authenticated Stored XSS
CVE Number CVE-2025-8215
Urgency Low
CVE Publish Date 2025-09-11
Source URL CVE-2025-8215

Responsive Addons for Elementor (≤1.7.4) — Authenticated Contributor Stored XSS (CVE-2025-8215): Analysis, Risks, and Practical Mitigations

Author: Hong Kong Security Expert

Date: 2025-09-11

Executive summary

A stored cross-site scripting (XSS) vulnerability (CVE-2025-8215) has been disclosed in the WordPress plugin “Responsive Addons for Elementor” affecting versions up to and including 1.7.4. The vulnerability has an estimated CVSS-equivalent score of 6.5. An authenticated user with Contributor privileges (or higher) can inject JavaScript into widget configuration fields that are stored and later rendered in frontend pages or admin screens, enabling execution in the context of administrators or site visitors.

This advisory, written from the perspective of a Hong Kong security practitioner, covers:

  • How the vulnerability operates;
  • Realistic attack scenarios and impact;
  • Detection techniques and indicators of compromise;
  • Immediate, practical mitigations for site owners and administrators (no vendor promotions);
  • Developer guidance for a correct fix.

Vulnerability overview

  • Title: Authenticated (Contributor+) Stored Cross-Site Scripting via multiple widgets
  • Affected plugin: Responsive Addons for Elementor
  • Affected versions: ≤ 1.7.4
  • Attack vector: Stored XSS in widget settings / widget output
  • Required privilege: Contributor or higher (authenticated)
  • CVE: CVE-2025-8215
  • Reported: 2025-09-11
  • Official patch: Not available at time of disclosure

Stored XSS occurs when user-submitted input is stored by the server and later rendered without proper escaping or sanitization. In this case, widget settings are saved to the database and output on frontend or admin pages without adequate escaping, allowing an authenticated contributor to persist script payloads.

Why Contributor privilege matters

Contributors can create and edit content while authenticated. If contributors can interact with page builders or widgets, they may be able to save settings that include executable markup. Many sites use external contributors or guest authors; assuming all contributors are fully trusted is risky.

Realistic attack scenarios

  1. Admin account takeover:

    A contributor injects a payload into widget settings shown in the admin preview or widgets screen. When an administrator views the page, the payload executes and can steal session tokens or perform actions via authenticated AJAX, possibly creating an admin user.

  2. Defacement, redirection, or malware delivery:

    Frontend payloads can redirect visitors, inject ads, or load malicious scripts such as cryptominers.

  3. Targeted phishing:

    Widgets can be crafted to display fake admin notices or login prompts to capture credentials from administrators.

  4. Supply-chain / propagation:

    If the site serves widgets or content that other sites embed, the impact can extend beyond a single origin.

Impact assessment

  • Confidentiality: High when admin sessions are targeted.
  • Integrity: Moderate to high — attackers can alter content or settings.
  • Availability: Low to moderate — redirects or heavy scripts can degrade service.
  • Reachability: Varies — admin-only renderings limit public impact but still enable high-value attacks.

Indicators of compromise and detection

Prioritise detection if you run the affected plugin. The following checks help identify stored payloads and related activity.

Database searches

Search for suspicious script tags in postmeta and options. Run queries on a read replica or a safe copy.

# WP-CLI: search postmeta for script tags
wp db query "SELECT post_id, meta_key, meta_value FROM wp_postmeta WHERE meta_value LIKE '% in options table (theme and plugin settings)
wp db query "SELECT option_name, option_value FROM wp_options WHERE option_value LIKE '%

Admin activity and logs

  • Review audit logs for contributor edits to widgets or page-builder pages.
  • Identify accounts that saved suspicious content and note their IPs and timestamps.

Rendered page inspection

  • View source on affected pages and search for inline scripts, base64 data blobs, eval(), document.write(), or unexpected external scripts.

Web server logs

  • Check for unusual POSTs to admin endpoints or admin-ajax activity from contributor accounts.

External signals

  • Search console warnings, malware blacklists, or reports from end users may indicate compromise.

Immediate remediation (site owner checklist)

If you cannot apply an official update immediately, follow these practical steps:

  1. Restrict contributor privileges:

    Temporarily revoke widget/page-builder related capabilities from Contributor accounts. Only trusted Editors or Admins should keep such rights during triage.

  2. Deactivate the plugin if non-essential:

    wp plugin deactivate responsive-addons-for-elementor
  3. Disable affected widgets:

    Identify and remove vulnerable widget types from pages or templates.

  4. Search and clean suspected payloads:

    Use targeted DB queries to locate ';

    Use wp_kses for controlled HTML

    If HTML is allowed, maintain an explicit allowlist and disallow script/style tags and on* attributes.

    Audit widget rendering contexts

    Do not output saved HTML in admin previews. Use escaped previews or strip tags in admin contexts.

    Automated tests

    Add unit and integration tests that ensure inputs with script-like content are sanitized and outputs are escaped.

    Suggested WAF rule logic (for security teams)

    If you manage a WAF or create virtual patch rules, consider the following heuristics. Test rules in staging to avoid false positives.

    • Block POSTs to widget save endpoints or admin-ajax that contain