CVE-2025-62867

4.3 MEDIUM

📋 TL;DR

This CVE describes a missing authorization vulnerability in the Ergonet Cache WordPress plugin that allows attackers to bypass access controls. It affects all WordPress sites running Ergonet Cache version 1.0.11 or earlier. Attackers could exploit this to perform unauthorized actions depending on plugin functionality.

💻 Affected Systems

Products:
  • Ergonet Cache (ergonet-varnish-cache WordPress plugin)
Versions: All versions up to and including 1.0.11
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects WordPress installations with the Ergonet Cache plugin installed and activated.

⚠️ 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

Complete compromise of WordPress site through privilege escalation or unauthorized administrative actions if plugin has sensitive functionality.

🟠

Likely Case

Unauthorized access to cached content management functions, potentially allowing cache poisoning or disruption of site performance.

🟢

If Mitigated

Limited impact with proper network segmentation and minimal plugin permissions, though authorization bypass remains possible.

🌐 Internet-Facing: HIGH - WordPress plugins are typically internet-facing and this vulnerability requires no authentication.
🏢 Internal Only: MEDIUM - Internal systems could still be affected if the plugin is used internally, but attack surface is reduced.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Missing authorization vulnerabilities typically have low exploitation complexity as they involve sending crafted requests to unprotected endpoints.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.0.12 or later

Vendor Advisory: https://patchstack.com/database/Wordpress/Plugin/ergonet-varnish-cache/vulnerability/wordpress-ergonet-cache-plugin-1-0-11-broken-access-control-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Ergonet Cache and click 'Update Now'. 4. Alternatively, download latest version from WordPress repository and manually replace plugin files.

🔧 Temporary Workarounds

Disable Ergonet Cache Plugin

all

Temporarily disable the vulnerable plugin until patched.

wp plugin deactivate ergonet-varnish-cache

Restrict Plugin Access via Web Application Firewall

all

Block access to Ergonet Cache endpoints using WAF rules.

# WAF-specific rules would vary by platform

🧯 If You Can't Patch

  • Remove Ergonet Cache plugin entirely and use alternative caching solutions
  • Implement strict network access controls to limit who can reach the WordPress admin interface

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel → Plugins → Installed Plugins for Ergonet Cache version 1.0.11 or earlier.

Check Version:

wp plugin get ergonet-varnish-cache --field=version

Verify Fix Applied:

Verify plugin version is 1.0.12 or later in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

  • Unusual requests to Ergonet Cache endpoints from unauthorized IPs
  • 403 errors followed by 200 successes on plugin-specific URLs

Network Indicators:

  • HTTP requests to /wp-content/plugins/ergonet-varnish-cache/ endpoints without authentication

SIEM Query:

source="wordpress.log" AND ("ergonet-varnish-cache" OR "ergonet cache") AND response_code=200 AND user="-"

🔗 References

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