CVE-2025-30523

7.6 HIGH

📋 TL;DR

This SQL injection vulnerability in the WordPress Super Simple Subscriptions plugin allows attackers to execute arbitrary SQL commands on the database. It affects all WordPress sites running the plugin from any version up to and including 1.1.0.

💻 Affected Systems

Products:
  • Super Simple Subscriptions WordPress Plugin
Versions: n/a through 1.1.0
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: All WordPress installations with vulnerable plugin versions 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

Complete database compromise leading to data theft, data manipulation, privilege escalation, or full site takeover.

🟠

Likely Case

Unauthorized data access, including extraction of user information, subscription details, or other sensitive data stored in the database.

🟢

If Mitigated

Limited impact with proper input validation and parameterized queries preventing successful exploitation.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires understanding of SQL injection techniques and WordPress plugin structure.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Version after 1.1.0

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/super-simple-subscriptions/vulnerability/wordpress-super-simple-subscriptions-plugin-1-1-0-sql-injection-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find Super Simple Subscriptions. 4. Click 'Update Now' if available. 5. If no update available, deactivate and remove the plugin.

🔧 Temporary Workarounds

Input Sanitization WAF Rule

all

Implement web application firewall rules to block SQL injection patterns in plugin requests.

🧯 If You Can't Patch

  • Deactivate and remove the Super Simple Subscriptions plugin immediately.
  • Implement strict network segmentation to isolate the affected WordPress instance.

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Installed Plugins for Super Simple Subscriptions version 1.1.0 or earlier.

Check Version:

wp plugin list --name=super-simple-subscriptions --field=version

Verify Fix Applied:

Confirm plugin version is higher than 1.1.0 or plugin is completely removed.

📡 Detection & Monitoring

Log Indicators:

  • Unusual SQL error messages in WordPress logs
  • Multiple failed SQL query attempts

Network Indicators:

  • HTTP requests with SQL syntax in parameters targeting plugin endpoints

SIEM Query:

source="wordpress.log" AND "SQL syntax" AND "super-simple-subscriptions"

🔗 References

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