CVE-2026-89424Medium· 6.4▾ Sunlit

The Duplicate Post plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'noti_token' parameter in all versions up to, and including, 1.5.6 due to insufficient input sanitization and output escaping

▾ Sunlit zone — Low / medium · no exploitation signal

Depth score35/ 100 · Low

impact 35.2 · likelihood 0 · exploitation 0

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Proof of concept

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Published

Oct 1, 2026

Updated

Oct 1, 2026

CVSS

6.4

Vendor

inisev

Product

Duplicate Post

CWE

CWE-79

Depth score

35 · Low

EPSS

—

Platforms

—

Source

NVD

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

inisev CWE-79 #nvd #cve.org

Affected

duplicate_post <= 1.5.6

Full technical detail▾

Overview

The Duplicate Post plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'noti_token' parameter in all versions up to, and including, 1.5.6 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This requires that the site owner has enabled the plugin's User Level Permissions for the Subscriber role, as this grants access to the i_saw_this_noti AJAX branch needed to deliver the payload.

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

References

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#nvd#cve.org