CVE-2026-1674

6.5 MEDIUM

📋 TL;DR

The Gutena Forms WordPress plugin has an authorization vulnerability that allows authenticated users with Contributor-level access or higher to modify WordPress option values. This could enable attackers to disrupt site functionality or change critical settings like user registration. All WordPress sites using Gutena Forms version 1.6.0 or earlier are affected.

💻 Affected Systems

Products:
  • Gutena Forms WordPress Plugin
Versions: All versions up to and including 1.6.0
Operating Systems: All operating systems running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress installation with Gutena Forms plugin and at least one user with Contributor role or higher.

⚠️ 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

Attacker disables site functionality causing denial of service, enables unauthorized user registration, or modifies critical WordPress settings leading to complete site compromise.

🟠

Likely Case

Attacker modifies plugin settings to disrupt form functionality or enable unauthorized features, potentially leading to data integrity issues or service disruption.

🟢

If Mitigated

With proper user access controls and monitoring, impact is limited to minor configuration changes that can be quickly detected and reverted.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploitation requires authenticated access but is straightforward once authenticated. The vulnerability is publicly documented with technical details.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.6.1

Vendor Advisory: https://plugins.trac.wordpress.org/changeset/3463148/gutena-forms

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find Gutena Forms and click 'Update Now'. 4. Verify version is now 1.6.1 or higher.

🔧 Temporary Workarounds

Restrict User Roles

all

Temporarily restrict or remove Contributor-level access from untrusted users until patching is complete.

Disable Plugin

all

Temporarily deactivate Gutena Forms plugin if forms functionality is not immediately required.

🧯 If You Can't Patch

  • Implement strict user access controls and monitor Contributor-level user activities
  • Deploy web application firewall rules to detect and block suspicious option modification requests

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Gutena Forms. If version is 1.6.0 or lower, you are vulnerable.

Check Version:

wp plugin list --name=gutena-forms --field=version

Verify Fix Applied:

After updating, verify Gutena Forms version shows 1.6.1 or higher in WordPress plugins list.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to /wp-admin/admin-ajax.php with action=save_gutena_forms_schema
  • Unexpected modifications to wp_options table from Contributor-level users

Network Indicators:

  • HTTP POST requests containing gutena_forms_schema parameter from non-admin users

SIEM Query:

source="wordpress.log" AND (action="save_gutena_forms_schema" OR user_role="contributor" AND operation="option_update")

🔗 References

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