Security readout for executives and security teams
Plain-English summary
CVE-2026-1575 affects the WordPress Schema Shortcode plugin through version 1.0. A logged-in user with Contributor-level access or higher could store malicious script in content using the plugin shortcode. The script may run when someone views the affected page, creating risk to site administrators and visitors.
Executive priority
Treat as a moderate website security issue. It is not reported as actively exploited in the provided sources, but it can affect administrators and visitors if an internal or compromised author account abuses it. Prioritize sites with many content contributors.
Technical view
The vulnerability is stored cross-site scripting in the plugin’s `itemscope` shortcode. The CVE states user-supplied shortcode attributes are not sufficiently sanitized or escaped. CVSS 3.1 is 6.4, with low privileges required, network access, changed scope, and low confidentiality and integrity impact.
Likely exposure
Exposure is limited to WordPress sites that have Schema Shortcode installed and allow Contributor-level or higher users to create content. Public visitors or administrators viewing injected content may be affected. The provided sources do not confirm how widely the plugin is deployed.
Exploitation context
The CVE and Wordfence reference describe authenticated stored XSS. CISA KEV status is false in the provided bundle, and no cited source states active exploitation. Practical risk increases where many authors, guest contributors, or less-trusted accounts can publish or submit shortcode content.
Researcher notes
Evidence is limited to the CVE description, Wordfence advisory reference, and WordPress plugin source reference. The bundle does not name a fixed version or vendor remediation. Avoid assuming a patch exists; verify current plugin repository and vendor guidance during triage.
Mitigation direction
- Inventory WordPress sites for the Schema Shortcode plugin.
- Identify installations running version 1.0 or earlier.
- Check vendor, WordPress plugin, and Wordfence guidance for update or removal instructions.
- Temporarily disable the plugin if business use is not required.
- Restrict Contributor and higher access to trusted users only.
- Review existing shortcode content before restoring broad author access.
Validation and detection
- Confirm whether Schema Shortcode is installed on each WordPress site.
- Record the installed plugin version and compare it to affected versions.
- Review posts and pages containing the `itemscope` shortcode.
- Prioritize content created or edited by Contributor-level users or above.
- Check security logs for suspicious content edits involving shortcode attributes.
- Validate remediation in staging before re-enabling author workflows.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2026-1575 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N3.12.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.4MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.