Medium severity · published Apr 22, 2026
CVE-2026-4138
DX Unanswered Comments <= 1.7 - Cross-Site Request Forgery via Settings Update
4.3
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 9% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DU
DX Unanswered Comments · nofearinc
through 1.7 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-4138
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-4138
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/dx-unanswered-comments/tags/1.7/dxuc-unanswered-comments-admin-page.php#L13
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/dx-unanswered-comments/tags/1.7/dxuc-unanswered-comments-admin-page.php#L21
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/dx-unanswered-comments/tags/1.7/dxuc-unanswered-comments-admin-page.php#L25
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/dx-unanswered-comments/tags/1.7/dxuc-unanswered-comments-admin-page.php#L40
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/dx-unanswered-comments/trunk/dxuc-unanswered-comments-admin-page.php#L13
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/dx-unanswered-comments/trunk/dxuc-unanswered-comments-admin-page.php#L21
