CVE-2025-7507 Overview
CVE-2025-7507 affects the elink – Embed Content plugin for WordPress in all versions up to and including 1.1.0. The plugin fails to restrict URLs supplied through the elink shortcode. Authenticated attackers with Contributor-level access or higher can embed an HTML file that redirects visitors to attacker-controlled domains. The flaw maps to CWE-20: Improper Input Validation and enables phishing, drive-by download, and malvertising campaigns launched from trusted WordPress hosts.
Critical Impact
Contributor accounts can weaponize the elink shortcode to redirect site visitors to malicious domains, undermining site trust and enabling downstream phishing or malware delivery.
Affected Products
- elink – Embed Content plugin for WordPress
- All versions up to and including 1.1.0
- WordPress sites permitting Contributor-level or higher account registration
Discovery Timeline
- 2025-08-15 - CVE-2025-7507 published to the National Vulnerability Database (NVD)
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-7507
Vulnerability Analysis
The elink – Embed Content plugin exposes an elink shortcode that accepts a URL parameter and renders remote content within the WordPress page. The plugin does not validate or sanitize the supplied URL against an allowlist of trusted domains or safe content types. An attacker with Contributor privileges can point the shortcode to an attacker-hosted HTML file that executes a client-side redirect. Because the malicious content loads from the WordPress site's context, visitors have no visual indicator that they are being routed offsite.
Root Cause
The root cause is improper input validation of the URL parameter accepted by the elink shortcode handler. The plugin trusts author-supplied URLs without enforcing scheme restrictions, domain allowlists, or content-type verification. This design choice grants any user capable of publishing shortcodes the ability to embed arbitrary remote resources.
Attack Vector
Exploitation requires an authenticated account with Contributor role or higher. The attacker submits a post or page containing the elink shortcode referencing an HTML file hosted on infrastructure they control. When an administrator, editor, or unauthenticated visitor loads the affected page, the embedded HTML issues a JavaScript or meta-refresh redirect to a malicious destination. See the Wordfence Vulnerability Report for technical details on the shortcode processing path.
No verified public exploit code is available for this issue. The vulnerability mechanism is described in prose above rather than reproduced here.
Detection Methods for CVE-2025-7507
Indicators of Compromise
- Posts or pages containing elink shortcodes that reference external domains not previously used by the site
- HTTP 3xx redirect chains originating from WordPress pages toward unrelated third-party hosts
- Contributor or Author accounts publishing content that embeds remote HTML from newly registered domains
- Visitor complaints reporting unexpected navigation to phishing, scam, or malware distribution pages
Detection Strategies
- Audit the wp_posts table for post_content values containing the elink shortcode and enumerate referenced URLs
- Correlate outbound redirect traffic from WordPress hosts against threat intelligence feeds tracking malicious domains
- Monitor WordPress admin logs for content publication activity by low-privilege roles referencing external URLs
- Flag any HTML embedded via the plugin that contains window.location, meta http-equiv="refresh", or similar redirect patterns
Monitoring Recommendations
- Ingest WordPress access logs and application logs into a centralized data lake for correlation with outbound web proxy traffic
- Alert on newly created Contributor or Author accounts followed by rapid content publication
- Track domain reputation changes for hosts referenced in shortcodes across managed WordPress fleets
How to Mitigate CVE-2025-7507
Immediate Actions Required
- Deactivate the elink – Embed Content plugin until a patched release is confirmed available on the WordPress plugin page
- Review existing posts and pages for the elink shortcode and remove entries pointing to untrusted domains
- Restrict Contributor and Author role assignments and audit recently created accounts
- Rotate credentials for any low-privilege accounts that show signs of abuse
Patch Information
No fixed version was identified in the enriched CVE data at the time of writing. Consult the Wordfence Vulnerability Report and the WordPress plugin page for updates on a patched release. Apply the vendor patch as soon as it becomes available.
Workarounds
- Remove the plugin entirely if embed functionality is not business-critical
- Enforce a Web Application Firewall (WAF) rule that blocks shortcode content referencing non-allowlisted domains
- Downgrade Contributor accounts to Subscriber level where publication rights are not required
- Require editorial review of all Contributor submissions before publication to catch malicious shortcodes
# Identify posts containing the vulnerable shortcode
wp db query "SELECT ID, post_title, post_author FROM wp_posts \
WHERE post_content LIKE '%[elink%' AND post_status IN ('publish','pending','draft');"
# Deactivate the plugin fleet-wide
wp plugin deactivate elink-embed-content --all
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
