Plugins · schema-app-structured-data-for-schemaorg · data as of 2026-11-04
Is Schema App Structured Data safe? Known vulnerabilities and latest version
- Status
- Closed 2026-10-23
- Known issues on record
- 5
- Unpatched in latest
- 0
What to do
- Replace it. A closed plugin gets no updates through WordPress, so any hole found from now on stays open.
- Deactivate and delete it once you have a replacement (Plugins → Deactivate → Delete). Deleting removes its files; deactivating alone leaves them on the server.
- If you ran a vulnerable version and something looks off (spam pages, strange admins, redirects), run the free scan, or have us clean it: Emergency Cleanup, $499.
With WP-CLI, once you have a replacement: wp plugin deactivate schema-app-structured-data-for-schemaorg && wp plugin delete schema-app-structured-data-for-schemaorg
Check your version
Known vulnerabilities
5 on record, newest first. “Affected” is the version range the source gives; “fixed in” is the version the source names, or (marked *) the first wordpress.org release after the last affected version. 5 record(s) do not state which versions are affected.
high 7.2 CVE-2026-96666 · published 2026-10-29
Stored cross-site scripting (XSS) in Schema App Structured Data (2.3.2 and older)
- Affected
- 2.3.2 and older
- Fixed in
- unknown
- Access needed (per CVSS)
- No login needed
- Range from
- CVE record (the advisory publisher) · score by Wordfence
Details from the advisory
The Schema App Structured Data plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Content via 'Remove Microdata' Output Filter in all versions up to, and including, 2.3.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires that an administrator has enabled the plugin's 'Remove Microdata' option and approves the malicious comment.
medium 5.3 CVE-2023-44258 · published 2025-01-02
Missing authorization check in Schema App Structured Data (1.23.1 and older)
- Affected
- 1.23.1 and older
- Fixed in
- 1.23.2
- Access needed (per CVSS)
- No login needed
- Range from
- CVE record (the advisory publisher) · score by Patchstack
Details from the advisory
Missing Authorization vulnerability in vberkel Schema App Structured Data schema-app-structured-data-for-schemaorg allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Schema App Structured Data: from n/a through <= 1.23.1.
medium 6.1 CVE-2024-11279 · published 2024-12-12
Reflected cross-site scripting (XSS) in Schema App Structured Data (2.2.4 and older)
- Affected
- 2.2.4 and older
- Fixed in
- unknown
- Access needed (per CVSS)
- No login needed; someone on the site has to click a link or open a page
- Range from
- CVE record (the advisory publisher) · score by Wordfence
Details from the advisory
The Schema App Structured Data plugin for WordPress is vulnerable to Reflected Cross-Site Scripting due to the use of add_query_arg without appropriate escaping on the URL in all versions up to, and including, 2.2.4. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
NVD CVE-2024-11279Wordfence advisoryCode change (fix)wordpress.org
medium 4.3 CVE-2024-0892 · published 2024-06-14
Cross-site request forgery (CSRF) in Schema App Structured Data (2.2.0 and older)
- Affected
- 2.2.0 and older
- Fixed in
- unknown
- Access needed (per CVSS)
- No login needed; someone on the site has to click a link or open a page
- Range from
- CVE record (the advisory publisher) · score by Wordfence
Details from the advisory
The Schema App Structured Data plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.2.0. This is due to missing or incorrect nonce validation on the MarkUpdate function. This makes it possible for unauthenticated attackers to update and delete post metadata via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
NVD CVE-2024-0892Wordfence advisoryCode change (fix)Plugin source
medium 4.3 CVE-2024-0893 · published 2024-05-24
Missing authorization check in Schema App Structured Data (2.2.0 and older)
- Affected
- 2.2.0 and older
- Fixed in
- unknown
- Access needed (per CVSS)
- Needs a low-level account (e.g. subscriber)
- Range from
- CVE record (the advisory publisher) · score by NVD
Details from the advisory
The Schema App Structured Data plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the MarkupUpdate function in all versions up to, and including, 2.2.0. This makes it possible for authenticated attackers, with subscriber access or higher, to update or delete post metadata.
NVD CVE-2024-0893Wordfence advisoryCode change (fix)Plugin source
Recent activity
- 2026-10-23 — closed on wordpress.org.
- 2026-10-29 — Stored cross-site scripting (XSS) disclosed (CVE-2026-96666), fix version not stated.
- 2025-01-02 — Missing authorization check disclosed (CVE-2023-44258), fixed in 1.23.2.
- 2024-12-12 — Reflected cross-site scripting (XSS) disclosed (CVE-2024-11279), fix version not stated.
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Browse vulnerabilities
Types found in this plugin: Cross-site scripting (XSS) (2) · Missing authorization (2) · Cross-site request forgery (CSRF) (1)
Where this data comes from
- Version, last update, installs, closure: wordpress.org/plugins/schema-app-structured-data-for-schemaorg (Plugins API), fetched 2026-11-04.
- Vulnerabilities: NIST National Vulnerability Database (NVD), checked 2026-11-04. This product uses data from the NVD API but is not endorsed or certified by the NVD.
- Each record links to its CVE page and to the original advisory (Wordfence, Patchstack or WPScan) where there is one. We only list a CVE here when its references or its advisory name this exact plugin, so a few real issues may be missing; none should be about a different plugin. Spot an error? Email Daniel.
Badge for your site or docs (states facts with a date, not a verdict):
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