Advanced Twenty Seventeen: Cross-site request forgery

A Subscriber or higher can invoke the bundled-child creation/activation action without capability or nonce checks, causing the site-wide activation change described by the export. The source omits the object name in that passage. The same action can be induced via CSRF against a logged-in user, including an administrator. The action and parameter names are not disclosed. Advanced Twenty Seventeen through 1.3.1 is affected.

CVE / CNA score 5.4 CVSS 3.1 · 134c704f-9b21-4f2e-91b3-4a467353bcc0

NVD score Pending NVD has not published its own CVSS assessment.

Component: Advanced Twenty Seventeen
Plugin slug: advanced-twenty-seventeen
Affected: <= 1.3.1
Safe version: See mitigation notes
Published: Oct 24, 2026
Weakness: CWE-862 — Missing Authorization

This CVE was published Oct 24, 2026 and is one of 1 known issue for this plugin.

What to do

Update, patch or deactivate.

This archive could not verify a fixed version because current official author release notes could not be retrieved or located. This archive's uncertainty does not establish that the vendor has not fixed the issue. Restrict or disable the affected feature where warranted and consult the author. Official notes: https://wordpress.org/plugins/advanced-twenty-seventeen/#developers. Require valid anti-CSRF tokens together with server-side authorization for the affected state-changing operation.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical description

The Advanced Twenty Seventeen WordPress plugin through 1.3.1 does not perform any capability or nonce check on the action that creates and activates its bundled child , allowing any authenticated user such as a subscriber to switch the site's active site-wide, and allowing the same action to be triggered against any logged-in user including an administrator via CSRF.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

References

Primary and upstream sources

Data attribution: This product uses the NVD API but is not endorsed or certified by the NVD.

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