CVE-2025-62894

5.4 MEDIUM

📋 TL;DR

This stored XSS vulnerability in the ACF Recent Posts Widget WordPress plugin allows attackers to inject malicious scripts into web pages that persist across sessions. Attackers can steal session cookies, redirect users to malicious sites, or perform actions on behalf of authenticated users. WordPress sites using vulnerable versions of this plugin are affected.

💻 Affected Systems

Products:
  • magicoders ACF Recent Posts Widget WordPress Plugin
Versions: All versions up to and including 5.9.3
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: WordPress sites with the vulnerable plugin installed and activated are affected regardless of configuration.

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could steal administrator credentials, take over the WordPress site, install backdoors, or deface the website completely.

🟠

Likely Case

Attackers steal user session cookies, redirect visitors to phishing sites, or perform limited actions as authenticated users.

🟢

If Mitigated

With proper input validation and output encoding, the malicious scripts would be neutralized before execution.

🌐 Internet-Facing: HIGH
🏢 Internal Only: LOW

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Exploitation requires the ability to inject malicious input into the widget, which typically requires some level of access or user interaction.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Version after 5.9.3

Vendor Advisory: https://patchstack.com/database/Wordpress/Plugin/acf-recent-posts-widget/vulnerability/wordpress-acf-recent-posts-widget-plugin-5-9-3-cross-site-scripting-xss-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'ACF Recent Posts Widget'. 4. Click 'Update Now' if available. 5. Alternatively, download latest version from WordPress repository and replace plugin files.

🔧 Temporary Workarounds

Disable Plugin

WordPress

Temporarily disable the vulnerable plugin until patched

wp plugin deactivate acf-recent-posts-widget

Input Sanitization

WordPress

Implement custom input validation and output encoding for widget fields

🧯 If You Can't Patch

  • Remove the ACF Recent Posts Widget from all pages and posts
  • Implement a Web Application Firewall (WAF) with XSS protection rules

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin > Plugins > Installed Plugins for ACF Recent Posts Widget version

Check Version:

wp plugin get acf-recent-posts-widget --field=version

Verify Fix Applied:

Verify plugin version is greater than 5.9.3 in WordPress admin

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to widget-related endpoints
  • Suspicious script tags in widget content

Network Indicators:

  • Malicious script payloads in HTTP requests
  • Unexpected redirects from widget pages

SIEM Query:

source="wordpress.log" AND "acf-recent-posts-widget" AND ("script" OR "javascript:" OR "onclick" OR "onload")

🔗 References

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