CVE-2026-1575
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 · uneditedThe Schema Shortcode plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's `itemscope` shortcode in all versions up to, and including, 1.0 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
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 · high confidenceThe Schema Shortcode WordPress plugin fails to sanitize and escape user-supplied attributes in its `itemscope` shortcode, allowing authenticated attackers with contributor-level or higher permissions to inject malicious JavaScript that persists in page content and executes when users access 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
- None
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/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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Confirm Schema Shortcode plugin is installedGo to WordPress admin > Plugins and look for 'Schema Shortcode' in the installed plugins list; note whether it is active or inactiveAffected if the plugin is installed and active, as only an active plugin with the vulnerable shortcode can be exploited
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Identify installed plugin versionIn Plugins list, click on 'Schema Shortcode' to view the plugin details; note the version number displayedAffected if the installed version lacks the security fix for CVE-2026-1575 (any version prior to the patched release)
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Search for itemscope shortcode usage in contentUse WordPress admin search or database query to find posts/pages containing the shortcode [itemscope] or [itemscope itemtype=...]Affected if any published content contains the itemscope shortcode with user-controlled attributes, as this is where malicious code would be stored
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Inspect shortcode attributes for injection payloadsExamine the found shortcode instances in page source or database wp_posts table; look for attributes containing javascript:, onload=, onerror=, or other script injection patternsAffected if the shortcode attributes contain unsanitized JavaScript that could execute when the page loads
You are affected if the Schema Shortcode plugin is active, running an unpatched version, and has the itemscope shortcode used in any published content with malicious attributes present.
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 to a patched version of the Schema Shortcode plugin that properly sanitizes shortcode attributes and escapes output; audit existing content for any injected scripts if unable to patch immediately.
- Consultation2.0 h
- Implementation1.0 h
- Testing1.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,456.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-1575 — 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-2026-1575 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