CVE-2026-66667Network attack vector

Stored script execution in visitor browsers

Published Aug 18, 2026 · Updated Aug 18, 2026

Cross-site scripting in WPDeveloper Templately before 3.7.2 allows remote attackers to execute arbitrary script in visitors' browsers. Public sources describe stored XSS caused by insufficient input sanitization and output escaping, but no reviewed vendor, CNA, or code reference publicly identifies the vulnerable endpoint, parameter, or function. The issue is reachable without authentication; exploitation still requires a user to load injected content, and published impact is limited to script execution in the site's origin.

CVSS severity7.1
High
EPSS probability0.18%
Next 30 days · Sep 17, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in WPDeveloper Templately before 3.7.2 allows remote attackers to execute arbitrary script in visitors' browsers. Public sources describe stored XSS caused by insufficient input sanitization and output escaping, but no reviewed vendor, CNA, or code reference publicly identifies the vulnerable endpoint, parameter, or function. The issue is reachable without authentication; exploitation still requires a user to load injected content, and published impact is limited to script execution in the site's origin.

The record

CVE
CVE-2026-66667
Published
Aug 18, 2026
Updated
Aug 18, 2026
Vendor
ReviewX Team
Product
Templately
Classifications
CWE-79, CAPEC-591, T1059.007, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 18, 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=n/a <=3.7.1 changes=[{"at":"3.7.2","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ReviewX Team · Templatelyversion=n/a <=3.7.1 changes=[{"at":"3.7.2","status":"unaffected"}]

Published CVSS scores

7.2WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
7.1Patchstack CNACVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 11, 2026Sep 17, 2026
Latest reporting daySep 17, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-591Reflected XSS
T1059.007JavaScript
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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