Nex FormsWordPress extension · Basixonline
CVE-2024-25593
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedImproper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Basix NEX-Forms – Ultimate Form Builder allows Stored XSS.This issue affects NEX-Forms – Ultimate Form Builder: from n/a through 8.5.5.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceStored Cross-site Scripting (XSS) vulnerability in Basix NEX-Forms – Ultimate Form Builder allows authenticated attackers to inject malicious JavaScript code through form fields that is persisted to the database and executed when other users view the affected pages. The vulnerability stems from improper input sanitization during web page generation.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data
Nex FormsWordPress extension
< 8.5.6CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Verify NEX-Forms plugin is installedNavigate to WordPress admin dashboard > Plugins and confirm 'NEX-Forms - Ultimate Form Builder' by Basixonline is active and installedAffected if The plugin is installed and active in the WordPress environment
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Check installed NEX-Forms versionGo to Plugins > Installed Plugins > NEX-Forms and locate the version number displayed under the plugin nameAffected if Version is displayed as less than 8.5.6 (e.g., 8.5.5, 8.4.x, etc.)
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Identify forms created with NEX-FormsAccess NEX-Forms in the WordPress sidebar and review the list of created forms under the 'Forms' sectionAffected if Any forms exist in the system, as the XSS payload can be injected into any form field and persists to the database
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Inspect form fields for potential XSS payloadsEdit each form, review field labels, default values, and placeholders for suspicious characters like <script>, javascript:, onerror=, or encoded variationsAffected if Any form field contains unsanitized user-supplied content that could execute as JavaScript when the form is viewed
User is affected if NEX-Forms plugin is installed with a version lower than 8.5.6 and contains any forms with potentially unsanitized field data that could execute malicious scripts when viewed.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped8.5.6
Update to the latest version of NEX-Forms if a patch is available; otherwise, implement proper input sanitization (sanitize_text_field, esc_html, etc.) and output escaping on all user-supplied form data before rendering.
8.5.6
- Backup your WordPress site and database before proceeding
- Update NEX-Forms – Ultimate Form Builder plugin to version 8.5.6 or later
- Verify the update was successful by checking the plugins page
- Test that forms on your site function correctly after the update
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Nex Forms
Scoped from the published advisory
- Consultation3.0 h
- Implementation6.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,224.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-25593 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2024-25593 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data