CVE-2026-39708
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 uicore UiCore Elements uicore-elements allows Stored XSS.This issue affects UiCore Elements: from n/a through <= 1.3.14.
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 XSS vulnerability in uicore Elements WordPress plugin allows authenticated attackers to inject malicious JavaScript via unsanitized user inputs that are stored and executed when other users view affected pages.
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
- Low
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:L/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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Check UiCore Elements plugin versionIn WordPress admin, go to Plugins > Installed Plugins > UiCore Elements and read the version number displayed below the plugin name. Alternatively, inspect the plugin header in wp-content/plugins/uicore-elements/uicore-elements.php for 'Version:' tag.Affected if The installed version is lower than the patched version released for this CVE.
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Identify input fields created by UiCore ElementsReview any post types, widgets, or custom fields that utilize UiCore Elements. Check frontend pages where user-supplied content is rendered and look for form inputs or content blocks provided by this plugin.Affected if The plugin is actively used and contains input fields that accept user content without apparent sanitization.
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Inspect database for suspicious stored scriptsQuery the WordPress database (wp_postmeta, wp_posts, or relevant custom tables) for any records containing script tags, javascript:, or on* event handlers. Use: SELECT * FROM wp_posts WHERE post_content LIKE '%<script%' OR post_content LIKE '%javascript:%'.Affected if Malicious JavaScript payloads are found stored in database entries associated with UiCore Elements content.
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Review recent user activity and contentCheck the WordPress revision history and activity log for recent edits made by lower-privileged users to content that includes UiCore Elements blocks or fields.Affected if Recent content edits contain unsanitized HTML or script injections.
You are affected if UiCore Elements is installed at a vulnerable version AND the plugin's input fields are being used to accept user content that gets rendered without proper output 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 uicore Elements to the latest patched version. Until then, restrict administrative access and implement input validation/sanitization on plugin form fields.
- Consultation2.0 h
- Implementation6.0 h
- Testing3.0 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 $3,664.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-39708 — 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-2026-39708 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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- 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
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