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CVE-2026-102771— Naichen ThinkCMF Email Template MailController.php templatePut special elements in template engine

Quick assessment

Affected
Naichen ThinkCMF
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在耐思 ThinkCMF 8.0.7 及更早版本中检测到一个安全漏洞。受此问题影响的是电子邮件模板组件中文件 里的 函数。该漏洞导致对模板引擎中使用的特殊元素未能进行适当的中和处理（即未正确转义或过滤）。攻击者可远程利用此漏洞。该漏洞的利用方法已公开披露，可能被攻击者直接使用。厂商在披露初期已被联系，但未作出任何回应。

CVSS 4.7 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-102771

Vulnerability Information
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Vulnerability Title
Naichen ThinkCMF Email Template MailController.php templatePut special elements in template engine
Source: CVE Program / CVE List V5
Vulnerability Description
A security vulnerability has been detected in Naichen ThinkCMF up to 8.0.7. Affected by this issue is the function MailController::templatePut of the file cmf-api/src/admin/controller/MailController.php of the component Email Template. The manipulation leads to improper neutralization of special elements used in a template engine. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1336
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Naichen ThinkCMF 8.0.0 cpe:2.3:a:thinkcmf:thinkcmf:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-102771

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III. Intelligence Information for CVE-2026-102771

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Other References for CVE-2026-102771 (1)

IV. Related Vulnerabilities

Same weakness: CWE-1336

V. Comments for CVE-2026-102771

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