Groundhogg <= 3.7.3.5 - Authenticated (Author+) Arbitrary File Upload via gh_big_file_upload Function
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-434.
Summary
The WordPress CRM, Email & Marketing Automation for WordPress | Award Winner — Groundhogg plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the gh_big_file_upload() function in all versions up to, and including, 3.7.3.5. This makes it possible for authenticated attackers, with Author-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| trainingbusinesspros | Groundhogg — CRM, Newsletters, and Marketing Automation | up to 3.7.3.5 | — | No fix listed | CNA |
- Groundhogg — CRM, Newsletters, and Marketing Automation Vendortrainingbusinesspros Affected up to 3.7.3.5 Fixed in — No fix listed CNA
CPE names Threatist (inferred) · 1
Inferred from how NVD named this product before; not given by a source.
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:groundhogg:groundhogg:*:*:*:*:*:*:*:* | — | — | trainingbusinesspros |
- cpe:2.3:a:groundhogg:groundhogg:*:*:*:*:*:*:*:* Versions — — ·trainingbusinesspros
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-0394
- 2026-10-03 Alias added: GHSA-wx2v-pc44-435q
References
Other 4
- https://www.wordfence.com/threat-intel/vulnerabilities/id/b2cf3b85-2e2d-43dc-9877-9a740d4fd2fb?source=cve
- https://plugins.trac.wordpress.org/browser/groundhogg/tags/3.7.3.5/includes/big-file-uploader.php#L117
- https://wordpress.org/plugins/groundhogg/#developers
- https://plugins.trac.wordpress.org/changeset/3221208/
More trainingbusinesspros vulnerabilities
- TI-2023-01346 Groundhogg Contacts < 2.7.9.4 - Admin+ SQLi CVSS 3.1HIGH 7.2
- TI-2023-01986 HollerBox < 2.1.4 - Admin+ SQL Injection CVSS 3.1MEDIUM 4.9
- TI-2019-11742 The groundhogg plugin before 1.3.5 for WordPress has… CVSS 3.0HIGH 8.8
- TI-2026-67410 Improper privilege management in trainingbusinesspros Groundhogg — CRM, Newsletters, and… CVSS 3.1HIGH 8.8
- TI-2023-17022 WordPress Groundhogg Plugin <= 2.7.11 is vulnerable to Cross Site Request Forgery (CSRF) CVSS 3.1HIGH 8.8
- TI-2026-70250 Privilege escalation in Groundhogg CRM plugin for WordPress CVSS 3.1HIGH 8.8
Sources
- CVE-2025-0394 · CVE Program
- CVE-2025-0394 · NVD
- FIRST EPSS
- GHSA-wx2v-pc44-435q · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences