Arbitrary file deletion in CFDB7 Database Addon for Contact Form 7
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-639.
Summary
The Database Addon for Contact Form 7 (CFDB7) WordPress plugin by arshidkv12 is affected up to and including 1.4.1. Its bulk action handler passes stored submission values whose field names contain 'cfdb7_file' directly to unlink() without checking that the file belongs to the submission, an authorization bypass through a user-controlled key (CWE-639). An unauthenticated remote attacker can inject a crafted multipart field to delete files on the server.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
The Database Addon for Contact Form 7 – CFDB7 plugin for WordPress is vulnerable to Arbitrary File Deletion in versions up to, and including, 1.4.1. This is due to the plugin storing arbitrary (non-form-tag) submission fields in its db7_forms row and the process_bulk_action() delete handler then matching any stored key whose name contains the substring 'cfdb7_file' and passing the stored value directly to unlink() without validating that the file actually belongs to the submission being deleted or constraining the filename with basename()/realpath(). This makes it possible for unauthenticated attackers to inject a crafted multipart field.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
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 |
|---|---|---|---|---|---|
| arshidkv12 | Database Addon for Contact Form 7 – CFDB7 | up to 1.4.1 | — | No fix listed | CNA |
- Database Addon for Contact Form 7 – CFDB7 Vendorarshidkv12 Affected up to 1.4.1 Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for Database Addon for Contact Form 7 (CFDB7).
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Timeline
- 2026-10-14 Threatist record created from CVE-2026-107652
- 2026-10-14 Alias added: GHSA-5c8v-v24f-7rj6
- 2026-10-16 CISA SSVC decision points changed
References
Other 5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/7de3606a-254c-4e5f-9499-b1cc79dce7c8?source=cve
- https://plugins.trac.wordpress.org/browser/contact-form-cfdb7/tags/1.4.0/inc/admin-subpage.php#L329
- https://plugins.trac.wordpress.org/browser/contact-form-cfdb7/tags/1.4.0/inc/admin-subpage.php#L325
- https://plugins.trac.wordpress.org/browser/contact-form-cfdb7/tags/1.4.0/contact-form-cfdb-7.php#L170
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3737068%40contact-form-cfdb7&new=3737068%40contact-form-cfdb7
More arshidkv12 vulnerabilities
- TI-2024-03610 Contact Form 7 Database Addon – CFDB7 <= 1.2.6.8 - Unauthenticated Sensitive Information Exposure CVSS 3.1MEDIUM 5.3
Sources
- CVE-2026-107652 · CVE Program
- CVE-2026-107652 · NVD
- FIRST EPSS
- GHSA-5c8v-v24f-7rj6 · 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