CVE-2026-54188
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 · uneditedUnauthenticated Cross Site Scripting (XSS) in JetEngine <= 3.8.10 versions.
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 confidenceUnauthenticated Cross Site Scripting (XSS) vulnerability in JetEngine WordPress plugin versions 3.8.10 and below allows attackers to inject malicious scripts without requiring authentication, likely through unsanitized user input in plugin functionality.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS 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
- None
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
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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Confirm JetEngine plugin installationNavigate to WordPress admin dashboard > Plugins, or check the filesystem at wp-content/plugins/jet-engine/ for the plugin directoryAffected if JetEngine plugin is present on the WordPress site
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Identify installed JetEngine versionIn WordPress admin, go to Plugins > Installed Plugins > JetEngine and view the version number displayed, or open wp-content/plugins/jet-engine/readme.txt and locate the 'Stable tag' entryAffected if The displayed version is 3.8.10 or lower
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Verify the vulnerable configuration is activeReview JetEngine dynamic content widgets, listing items, or custom post type settings that accept user-supplied input for dynamic content renderingAffected if Dynamic content widgets or user input fields are configured without additional sanitization layers
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Inspect for signs of XSS exploitationSearch server access logs for common XSS attack patterns such as <script>, javascript:, onerror=, onload=, or img src= within URL parameters referencing JetEngine endpoints; also inspect browser console for unexpected script errors on public-facing pagesAffected if Logs reveal malicious script injection attempts targeting JetEngine routes, or site pages contain unauthorized injected scripts
The site is affected if JetEngine version 3.8.10 or below is installed AND unauthenticated user input can be submitted through JetEngine dynamic content features without sanitization.
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.
From vendor dataUpdate JetEngine to the latest version beyond 3.8.10 to patch the vulnerability. As a defense-in-depth measure, implement Content Security Policy headers and ensure proper input sanitization on any custom JetEngine widgets or dynamic content.
- Consultation1.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-54188 — 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-2026-54188 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