CVE-2026-66606 - Vulnerability Details - OpenCVE

Unauthenticated Cross Site Scripting (XSS) in SmartSMTP <= 1.2.0 versions.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

ThemeGrill

SmartSMTP

unaffected

Version	Status	Constraints
`n/a`	affected	≤ 1.2.0

No data.

No data.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

Update the WordPress SmartSMTP Plugin to the latest available version (at least 1.2.1).

Workaround

No workaround given by the vendor.

References

Link	Providers
https://patchstack.com/database/wordpress/plugin/smart-smtp/vulnerability/wordpress-smartsmtp-plugin-1-2-0-cross-site-scripting-xss-vulnerability?_s_id=cve

History

Thu, 20 Aug 2026 12:15:00 +0000

Type	Values Removed	Values Added
Description		Unauthenticated Cross Site Scripting (XSS) in SmartSMTP <= 1.2.0 versions.
Title		WordPress SmartSMTP plugin <= 1.2.0 - Cross Site Scripting (XSS) vulnerability
Weaknesses		CWE-79
References		https://patchstack.com/database/wordpress/plugin/smart-smtp/vulnerability/wordpress-smartsmtp-plugin-1-2-0-cross-site-scripting-xss-vulnerability?_s_id=cve
Metrics		cvssV3_1 `{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: Patchstack

Published: 2026-08-20T12:07:07.969Z

Updated: 2026-08-20T14:32:54.395Z

Reserved: 2026-07-27T14:00:13.421Z

Link: CVE-2026-66606

Vulnrichment

No data.

NVD

Status : Deferred

Published: 2026-08-20T12:16:34.317

Modified: 2026-08-20T12:48:31.843

Link: CVE-2026-66606

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-79

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