CVE-2026-4138Network attack vector

Settings modification via missing nonce validation

Published Apr 22, 2026 · Updated Apr 22, 2026

Cross-site request forgery in DX Unanswered Comments 1.7 and earlier allows remote attackers to modify plugin settings via forged requests. The settings form in dxuc-unanswered-comments-admin-page.php accepts dxuc_authors_list and dxuc_comment_count updates without validating a nonce. Exploitation requires an authenticated site administrator to submit the attacker-controlled request, changing the plugin’s author filter and comment-count configuration.

CVSS severity4.3
Medium
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site request forgery in DX Unanswered Comments 1.7 and earlier allows remote attackers to modify plugin settings via forged requests. The settings form in dxuc-unanswered-comments-admin-page.php accepts dxuc_authors_list and dxuc_comment_count updates without validating a nonce. Exploitation requires an authenticated site administrator to submit the attacker-controlled request, changing the plugin’s author filter and comment-count configuration.

The record

CVE
CVE-2026-4138
Published
Apr 22, 2026
Updated
Apr 22, 2026
Vendor
nofearinc
Product
DX Unanswered Comments
Classifications
CWE-352, T1565.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 22, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 22, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=1.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

nofearinc · DX Unanswered Commentsversion=0 <=1.7

Published CVSS scores

4.3WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
T1565.001Stored Data Manipulation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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