CVE-2026-121875
Post Duplicator < 3.0.18 - Admin+ Privilege Escalation via Unvalidated Capability Assignment
Description
The Post Duplicator WordPress plugin before 3.0.18 does not validate the capabilities assigned to roles through its permissions settings, allowing a site administrator on a multisite network who is not a Super Admin to grant any role arbitrary capabilities, including the network-management capabilities reserved to the Super Admin.
INFO
Published Date :
Nov. 9, 2026, 7:17 a.m.
Last Modified :
Nov. 9, 2026, 7:17 a.m.
Remotely Exploit :
No
Source :
[email protected]
Solution
- Update the Post Duplicator plugin to version 3.0.18.
- Review and correct role capabilities if necessary.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-121875.
| URL | Resource |
|---|---|
| https://wpscan.com/vulnerability/543db6f0-78dd-4c18-ac64-fbcb122771bd/ |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-121875 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-121875
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-121875 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-121875 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by [email protected]
Nov. 09, 2026
Action Type Old Value New Value Added Description The Post Duplicator WordPress plugin before 3.0.18 does not validate the capabilities assigned to roles through its permissions settings, allowing a site administrator on a multisite network who is not a Super Admin to grant any role arbitrary capabilities, including the network-management capabilities reserved to the Super Admin. Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/121xxx/CVE-2026-121875.json">CVE-2026-121875</a> Added Reference https://wpscan.com/vulnerability/543db6f0-78dd-4c18-ac64-fbcb122771bd/