Unauthenticated form-entry overwrite via unchecked AJAX handler
Published Jul 11, 2026 · Updated Jul 11, 2026
Missing authorization in Basix NEX-Forms 9.2.2 and earlier allows remote attackers to alter other users' form entries via an AJAX request. The nf_send_nf_email handler overwrites saved_admin_email, saved_user_email, and saved_user_email_address without verifying access to the selected entry. No account is required; the altered recipient and message data cause the WordPress site to send attacker-controlled email to attacker-chosen addresses.
Summary
What happened
Missing authorization in Basix NEX-Forms 9.2.2 and earlier allows remote attackers to alter other users' form entries via an AJAX request. The nf_send_nf_email handler overwrites saved_admin_email, saved_user_email, and saved_user_email_address without verifying access to the selected entry. No account is required; the altered recipient and message data cause the WordPress site to send attacker-controlled email to attacker-chosen addresses.
The record
- CVE
- CVE-2026-9017
- Published
- Jul 11, 2026
- Updated
- Jul 11, 2026
- Vendor
- Basix
- Product
- NEX-Forms
- Classifications
- CWE-862, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 11, 2026CVE publishedPublication date reported by the CVE source.
- Jul 11, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=9.2.2
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
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Technologies
Your stack
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Your stack
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