Duplicate Post <= 1.5.6 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'noti_token' Parameter
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-89424
- 2026-10-03 Alias added: GHSA-mjxg-mhjq-2vx5
References
Other 8
- https://www.wordfence.com/threat-intel/vulnerabilities/id/c475c51e-f01d-4698-822f-5b8df999bf6d?source=cve
- https://plugins.trac.wordpress.org/browser/copy-delete-posts/tags/1.5.6/menu/notifications.php#L53
- https://plugins.trac.wordpress.org/browser/copy-delete-posts/tags/1.5.6/menu/notifications.php#L84
- https://plugins.trac.wordpress.org/browser/copy-delete-posts/tags/1.5.6/post/handler.php#L1598
- https://plugins.trac.wordpress.org/browser/copy-delete-posts/tags/1.5.6/post/handler.php#L1601
- https://plugins.trac.wordpress.org/browser/copy-delete-posts/tags/1.5.6/post/handler.php#L15
- https://plugins.trac.wordpress.org/changeset?reponame=&new=3709767%40copy-delete-posts%2Ftags%2F1.5.7&old=3652254%40copy-delete-posts%2Ftags%2F1.5.6
- https://plugins.trac.wordpress.org/changeset/3709767/copy-delete-posts/trunk/menu/notifications.php
More inisev vulnerabilities
- TI-2023-06004 Backup Migration <= 1.3.7 - Unauthenticated Remote Code Execution CVSS 3.1CRITICAL 9.8
- TI-2024-00517 Enhanced Text Widget < 1.6.6 - Admin+ Stored XSS CVSS 3.1MEDIUM 6.5
- TI-2023-01258 Redirection < 1.1.5 - Plugin Reset via CSRF CVSS 3.1MEDIUM 6.5
- TI-2023-01257 Redirection < 1.1.4 - Redirect Creation via CSRF CVSS 3.1MEDIUM 6.5
- TI-2024-00519 Ultimate Posts Widget < 2.3.1 - Admin+ Stored XSS CVSS 3.1MEDIUM 5.4
- TI-2023-06399 Backup Migration <= 1.3.9 - Authenticated (Admin+) OS Command Injection via url CVSS 3.1HIGH 7.2
Sources
- CVE-2026-89424 · CVE Program
- CVE-2026-89424 · NVD
- FIRST EPSS
- GHSA-mjxg-mhjq-2vx5 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences