CVE-2026-14923
Deferred Deferred - Pending Action

Unauthorized Page Creation in Sync Post With Other Site WordPress Plugin

Publication date: 2026-07-30

Last updated on: 2026-07-30

Assigner: WPScan

Description
The Sync Post With Other Site WordPress plugin before 1.9.3 does not correctly enforce the page-editing capability on a REST route that creates and updates posts, because of an operator-precedence flaw in its authorization check. An authenticated user holding only the post-editing capability (such as a Contributor) can create, publish, and overwrite arbitrary Pages, including modifying content authored by higher-privileged users.

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Meta Information

Published
2026-07-30
Last Modified
2026-07-30
Generated
2026-08-19
AI Q&A
2026-07-30
EPSS Evaluated
2026-08-18
NVD
CVE-2026-14923
EUVD
EUVD-2026-50988

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
sync_post_with_other_site plugin to 1.9.3 (exc)
sync_post_with_other_site sync_post_with_other_site to 1.9.3 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-863 The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

Attack-Flow Graph

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Executive Summary

This vulnerability affects the WordPress plugin 'Sync Post With Other Site' before version 1.9.3. It allows authenticated users with limited privileges, such as Contributors, to exploit an authorization flaw due to incorrect operator precedence in the plugin's permission checks. This enables them to create, publish, and overwrite any Pages, including those created by higher-privileged users.

Detection Guidance

Check if the 'Sync Post With Other Site' plugin is installed and its version is below 1.9.3. Inspect WordPress REST API logs for unauthorized POST requests to create or modify pages by users with Contributor or similar roles.

Impact Analysis

If you use the affected plugin version, an attacker with a Contributor-level account could modify or delete important pages on your WordPress site. This includes overwriting content created by administrators or editors, potentially disrupting site functionality or spreading misinformation.

Compliance Impact

This vulnerability could lead to unauthorized modifications of sensitive content, potentially violating data integrity and confidentiality requirements under GDPR or HIPAA. Unauthorized changes to pages may expose protected data or misrepresent compliance-related information.

Mitigation Strategies

Update the 'Sync Post With Other Site' plugin to version 1.9.3 or later. If immediate update is not possible, disable the plugin until the update is applied. Review user roles and permissions to ensure Contributors and similar roles cannot edit pages.

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