CVE-2026-9843 json
Database for Contact Form 7, WPforms, Elementor forms <= 1.5.1 - Unauthenticated Arbitrary File Deletion via CF7 File Field POST Value
published 4mo ago modified 4mo ago also EUVD-2026-38104
- cvss
- 8.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 64%
- public exploits
- 0
- none known
Summary
The Database for Contact Form 7, WPforms, Elementor forms plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the view_page function in all versions up to, and including, 1.5.1. This makes it possible for unauthenticated attackers to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). Successful exploitation requires an administrator to view or edit the poisoned form entry, at which point PHP's bracket parser reshapes the attacker-crafted JSON key to bypass the stored-path isset check and trigger deletion of the traversal-specified file.
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4mo ago
Exploit prediction
1.04% chance of exploitation in the next 30 days, higher than 64% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H |
Affected products
- crmperks Database for Contact Form 7, WPforms, Elementor forms
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/4169b390-0972-4aa9-ae04-f5f67afe15ef?source=cve
- plugins.trac.wordpress.org /browser/contact-form-entries/tags/1.5.1/includes/plugin-pages.php#L1197
- plugins.trac.wordpress.org /browser/contact-form-entries/tags/1.5.1/contact-form-entries.php#L747
- plugins.trac.wordpress.org /browser/contact-form-entries/tags/1.5.1/contact-form-entries.php#L435
- plugins.trac.wordpress.org /browser/contact-form-entries/tags/1.5.1/includes/data.php#L539
- plugins.trac.wordpress.org /browser/contact-form-entries/tags/1.5.1/templates/view.php#L559
- plugins.trac.wordpress.org /changeset/3578556/contact-form-entries
Sources
- CVE List CVE-2026-9843
- NVD CVE-2026-9843
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.