Read the docs

Arbitrary file deletion in CFDB7 Database Addon for Contact Form 7

Priority LOW 30CWE-639Published · Updated

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

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00307 23rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

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

VendorProductAffected versionsFixed inStatusSource
arshidkv12Database Addon for Contact Form 7 – CFDB7up to 1.4.1—No fix listedCNA
  • 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

  1. 2026-10-14 Threatist record created from CVE-2026-107652
  2. 2026-10-14 Alias added: GHSA-5c8v-v24f-7rj6
  3. 2026-10-16 CISA SSVC decision points changed

References

  • TI-2024-03610 Contact Form 7 Database Addon – CFDB7 <= 1.2.6.8 - Unauthenticated Sensitive Information Exposure CVSS 3.1MEDIUM 5.3

Sources