Advanced Contact form 7 DB <= 1.8.6 — Authenticated Arbitrary File Deletion
CVE-2021-24905Published · Updated Action summary
Affected: <1.8.7Update to 1.8.7 or newer
All remediation steps- Severity
- High8.8
- CVSS
- 8.8CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:LPrivileges required- Low
UI:NUser interaction- None
S:UScope- Unchanged
C:HConfidentiality- High
I:HIntegrity- High
A:HAvailability- High
- Weakness
- CWE-863 Incorrect Authorization
- Required access
- Unknown
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Advanced Contact form 7 DB advanced-cf7-db
- Affected< 1.8.7
- Patched in1.8.7
Update to 1.8.7 or newer.
You are affected if you run < 1.8.7. Version 1.8.7 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Advanced Contact form 7 DB.
- No admin access? Run a passive check of your site. It reads public files only.
What to do
- Update to version 1.8.7, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Advanced Contact form 7 DB to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Krzysztof Zając.
The Advanced Contact form 7 DB WordPress plugin before 1.8.7 does not have authorisation nor CSRF checks in the acf7_db_edit_scr_file_delete AJAX action, and does not validate the file to be deleted, allowing any authenticated user to delete arbitrary files on the web server. For example, removing the wp-config.php allows attackers to trigger WordPress setup again, gain administrator privileges and execute arbitrary code or display arbitrary content to the users.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in Advanced Contact form 7 DB
All 13| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium6.5 | Missing Authorization to Authenticated (Contributor+) Information Disclosure via 'acf7db' Shortcode ≤2.1.1Update to 2.1.2 | CVE-2026-6831 | |
| Medium4.3 | Missing Authorization to Authenticated (Custom+) Unauthorized Data Import via 'import_cf7_id' ≤2.1.3No patch available | CVE-2026-18594 | |
| Medium4.3 | Missing Authorization ≤2.0.9Update to 2.1.0 | CVE-2026-57669 | |
| Medium5.4 | Cross-Site Request Forgery to Form Entry Deletion ≤2.0.9Update to 2.1.0 | CVE-2026-0811 | |
| Medium4.3 | Missing Authorization to Authenticated (Subscriber+) Form Submissions Excel Export ≤2.0.9Update to 2.1.0 | CVE-2026-0814 |
- Medium6.5Missing Authorization to Authenticated (Contributor+) Information Disclosure via 'acf7db' Shortcode
≤2.1.1Update to 2.1.2
- Medium4.3Missing Authorization to Authenticated (Custom+) Unauthorized Data Import via 'import_cf7_id'
≤2.1.3No patch available
- Medium4.3Missing Authorization
≤2.0.9Update to 2.1.0
- Medium5.4Cross-Site Request Forgery to Form Entry Deletion
≤2.0.9Update to 2.1.0
- Medium4.3Missing Authorization to Authenticated (Subscriber+) Form Submissions Excel Export
≤2.0.9Update to 2.1.0
Timeline
CVE published
Severity high, CVSS 8.8
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- [object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.