CVE-2026-4138
DX Unanswered Comments <= 1.7 - Cross-Site Request Forgery via Settings Update
Description
The DX Unanswered Comments plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.7. This is due to missing nonce validation on the plugin's settings form in the dxuc-unanswered-comments-admin-page.php file. This makes it possible for unauthenticated attackers to modify plugin settings (dxuc_authors_list and dxuc_comment_count) via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
INFO
Published Date :
April 22, 2026, 9:16 a.m.
Last Modified :
April 22, 2026, 9:16 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-4138
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update the DX Unanswered Comments plugin to version 1.8 or later.
- Ensure nonce validation is implemented for the settings form.
- Verify that all user inputs are properly sanitized.
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-2026-4138.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-4138 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-2026-4138
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-2026-4138 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-4138 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]
Apr. 22, 2026
Action Type Old Value New Value Added Description The DX Unanswered Comments plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.7. This is due to missing nonce validation on the plugin's settings form in the dxuc-unanswered-comments-admin-page.php file. This makes it possible for unauthenticated attackers to modify plugin settings (dxuc_authors_list and dxuc_comment_count) via a forged request granted they can trick a site administrator into performing an action such as clicking on a link. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N Added CWE CWE-352 Added Reference https://plugins.trac.wordpress.org/browser/dx-unanswered-comments/tags/1.7/dxuc-unanswered-comments-admin-page.php#L13 Added Reference https://plugins.trac.wordpress.org/browser/dx-unanswered-comments/tags/1.7/dxuc-unanswered-comments-admin-page.php#L21 Added Reference https://plugins.trac.wordpress.org/browser/dx-unanswered-comments/tags/1.7/dxuc-unanswered-comments-admin-page.php#L25 Added Reference https://plugins.trac.wordpress.org/browser/dx-unanswered-comments/tags/1.7/dxuc-unanswered-comments-admin-page.php#L40 Added Reference https://plugins.trac.wordpress.org/browser/dx-unanswered-comments/trunk/dxuc-unanswered-comments-admin-page.php#L13 Added Reference https://plugins.trac.wordpress.org/browser/dx-unanswered-comments/trunk/dxuc-unanswered-comments-admin-page.php#L21 Added Reference https://plugins.trac.wordpress.org/browser/dx-unanswered-comments/trunk/dxuc-unanswered-comments-admin-page.php#L25 Added Reference https://plugins.trac.wordpress.org/browser/dx-unanswered-comments/trunk/dxuc-unanswered-comments-admin-page.php#L40 Added Reference https://www.wordfence.com/threat-intel/vulnerabilities/id/e44dbd0e-d6a7-438b-b1bf-a6628734fec4?source=cve