CVE-2026-13416Network attack vector

Editor-level stored XSS via unescaped social settings

Published Aug 27, 2026 · Updated Aug 27, 2026

Stored XSS in NiteoThemes CMP – Coming Soon & Maintenance Plugin before 4.1.18 allows remote authenticated users to run arbitrary scripts. The plugin stores niteoCS_socialmedia settings without sanitization and renders them on the public coming-soon page without output escaping. Exploitation requires an administrator to expose CMP admin-bar controls to Editors; any visitor to the coming-soon page then executes the injected script.

CVSS severityUnavailable
Unscored
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in NiteoThemes CMP – Coming Soon & Maintenance Plugin before 4.1.18 allows remote authenticated users to run arbitrary scripts. The plugin stores niteoCS_socialmedia settings without sanitization and renders them on the public coming-soon page without output escaping. Exploitation requires an administrator to expose CMP admin-bar controls to Editors; any visitor to the coming-soon page then executes the injected script.

The record

CVE
CVE-2026-13416
Published
Aug 27, 2026
Updated
Aug 27, 2026
Vendor
NiteoThemes
Product
CMP – Coming Soon & Maintenance Plugin
Classifications
T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 27, 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 <4.1.18

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

NiteoThemes · CMP – Coming Soon & Maintenance Pluginversion=0 <4.1.18

Published CVSS scores

No CVSS assessment is available in this record.

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1189Drive-by Compromise

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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