CVE-2025-13386 Overview
CVE-2025-13386 affects the Social Images Widget plugin for WordPress in all versions up to and including 2.1. The vulnerability stems from a missing capability check on the options_update function within class-social-images-widget-settings.php. Unauthenticated attackers can delete the plugin's settings through a forged request, provided they trick a site administrator into clicking a crafted link. The flaw is categorized under [CWE-862] Missing Authorization and represents a Cross-Site Request Forgery (CSRF) condition affecting integrity. The EPSS probability is 0.241% at the 15.301 percentile.
Critical Impact
Attackers can delete plugin settings via forged requests, disrupting site configuration when an administrator is tricked into interacting with malicious content.
Affected Products
- Social Images Widget plugin for WordPress
- All versions up to and including 2.1
- WordPress sites with the vulnerable plugin activated
Discovery Timeline
- 2025-11-25 - CVE-2025-13386 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-13386
Vulnerability Analysis
The Social Images Widget plugin exposes an options_update function that processes configuration changes without validating the requester's WordPress capabilities. The function lacks both a capability check and a nonce verification, leaving the endpoint open to Cross-Site Request Forgery attacks. An unauthenticated attacker crafts a malicious page or link that issues a request to the vulnerable endpoint. When a logged-in administrator visits the attacker-controlled content, the browser submits the request using the administrator's active session, causing the plugin's stored options to be modified or deleted.
Root Cause
The root cause is a missing authorization check on a state-changing operation, classified as [CWE-862]. The options_update handler in class-social-images-widget-settings.php at line 44 accepts input and updates settings without calling current_user_can() or verifying a WordPress nonce via check_admin_referer() or wp_verify_nonce(). This omission violates WordPress security best practices for administrative actions.
Attack Vector
The attack vector is network-based and requires no authentication or privileges from the attacker. Exploitation depends on social engineering to induce an authenticated administrator to click a link or load attacker-controlled content. The impact is limited to integrity, specifically the deletion or modification of the plugin's stored settings. See the Wordfence Vulnerability Analysis and the WordPress Plugin Code Review for source-level detail.
Detection Methods for CVE-2025-13386
Indicators of Compromise
- Unexpected resets or removal of Social Images Widget plugin settings within the WordPress wp_options table
- HTTP POST requests to the plugin's settings handler containing referrer headers from external, untrusted domains
- Administrator sessions generating settings-update requests immediately after visiting third-party content
- Missing _wpnonce or referer parameters on requests that modify plugin options
Detection Strategies
- Review web server access logs for requests to class-social-images-widget-settings.php originating from off-site referrers
- Correlate WordPress audit log entries for options changes with the authenticated administrator's browsing activity
- Deploy a Web Application Firewall (WAF) rule that flags state-changing requests to the plugin without valid nonces
Monitoring Recommendations
- Enable a WordPress activity logging plugin to capture all changes to plugin options and administrative actions
- Monitor for anomalous outbound clicks from administrator accounts to unknown domains preceding option changes
- Alert on modifications to Social Images Widget records in the wp_options table
How to Mitigate CVE-2025-13386
Immediate Actions Required
- Deactivate the Social Images Widget plugin until a patched release is available that adds capability and nonce checks
- Restrict administrator browsing sessions and enforce separation between administrative and general-purpose browsing
- Apply WAF rules that require valid WordPress nonces on plugin settings endpoints
Patch Information
At the time of publication, the enriched CVE data lists no vendor advisory URL confirming a fixed release. Administrators should consult the WordPress Plugin Code Overview and the Wordfence Vulnerability Analysis for updated remediation status, and upgrade to any version later than 2.1 once released.
Workarounds
- Remove or disable the Social Images Widget plugin on production sites
- Enforce browser isolation or dedicated administrative browsers to reduce CSRF exposure
- Implement server-side referrer and origin validation on WordPress admin requests through a WAF
- Educate administrators to avoid clicking untrusted links while authenticated to the WordPress admin panel
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
