CVE-2025-8593
📋 TL;DR
The GSheetConnector For Gravity Forms WordPress plugin has an authorization bypass vulnerability that allows authenticated users with subscriber-level access or higher to install arbitrary plugins. This can lead to arbitrary code execution on the server if malicious plugins are installed. All WordPress sites using vulnerable plugin versions are affected.
💻 Affected Systems
- GSheetConnector For Gravity Forms WordPress plugin
⚠️ 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.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Attackers achieve full server compromise through arbitrary plugin installation leading to remote code execution, data theft, and complete site takeover.
Likely Case
Attackers install malicious plugins to create backdoors, steal sensitive data, or deface websites.
If Mitigated
Attackers can still install plugins but proper security controls limit damage through file permissions and monitoring.
🎯 Exploit Status
Exploitation requires authenticated access but is straightforward once authenticated. The vulnerability is well-documented in public sources.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.3.28 or higher
Vendor Advisory: https://plugins.trac.wordpress.org/browser/gsheetconnector-gravity-forms
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'GSheetConnector For Gravity Forms'. 4. Click 'Update Now' if available. 5. Alternatively, download version 1.3.28+ from WordPress repository and manually update.
🔧 Temporary Workarounds
Disable vulnerable plugin
allTemporarily deactivate the GSheetConnector plugin until patched
wp plugin deactivate gsheetconnector-gravity-forms
Restrict user capabilities
allRemove plugin installation capabilities from subscriber and other non-admin roles
wp role reset subscriber
wp cap remove subscriber install_plugins
🧯 If You Can't Patch
- Implement strict access controls and limit user registration
- Enable comprehensive logging and monitoring for plugin installation activities
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > GSheetConnector For Gravity Forms version. If version <= 1.3.27, vulnerable.Check Version:
wp plugin get gsheetconnector-gravity-forms --field=versionVerify Fix Applied:
Verify plugin version is 1.3.28 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unauthorized plugin installation attempts
- install_plugin function calls from non-admin users
- Unexpected plugin activation events
Network Indicators:
- HTTP POST requests to wp-admin/admin-ajax.php with install_plugin action
- Unusual plugin download traffic
SIEM Query:
source="wordpress.log" AND ("install_plugin" OR "plugin installed") AND user_role!="administrator"🔗 References
- https://plugins.trac.wordpress.org/browser/gsheetconnector-gravity-forms/tags/1.3.23/includes/class-gravityform-gs-service.php#L128
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3354113%40gsheetconnector-gravity-forms&new=3354113%40gsheetconnector-gravity-forms&sfp_email=&sfph_mail=
- https://www.wordfence.com/threat-intel/vulnerabilities/id/c7266ce6-2853-4c5d-9e36-8c5b7418b072?source=cve
