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CVE-2016-9493— PHP forms generated using the PHP FormMail Generator are vulnerable to stored cross-site scripting

Quick assessment

Affected
PHP FormMail Generator
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.

PHP FormMail Generator是一套使用于生成包含在PHP或WordPress网站中的标准Web表单的PHP应用程序。 PHP FormMail Generator（2016年12月17日发布的版本）中存在跨站脚本漏洞，该漏洞源于程序没有正确过滤用户提交的输入。攻击者可通过推测已上传的文件名利用该漏洞执行PHP代码。

AI Predicted 6.5 Difficulty: Moderate EPSS 1.51% · P73

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2016-9493

Vulnerability Information
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Vulnerability Title
PHP forms generated using the PHP FormMail Generator are vulnerable to stored cross-site scripting
Source: CVE Program / CVE List V5
Vulnerability Description
The code generated by PHP FormMail Generator prior to 17 December 2016 is vulnerable to stored cross-site scripting. In the generated form.lib.php file, upload file types are checked against a hard-coded list of dangerous extensions. This list does not include all variations of PHP files, which may lead to execution of the contained PHP code if the attacker can guess the uploaded filename. The form by default appends a short random string to the end of the filename.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
Web页面中脚本相关HTML标签转义处理不恰当(基本跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
PHP FormMail Generator 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PHP FormMail Generator是一套使用于生成包含在PHP或WordPress网站中的标准Web表单的PHP应用程序。 PHP FormMail Generator（2016年12月17日发布的版本）中存在跨站脚本漏洞，该漏洞源于程序没有正确过滤用户提交的输入。攻击者可通过推测已上传的文件名利用该漏洞执行PHP代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
PHP FormMail Generator 17/12/2016 ~ 17/12/2016 -

II. Public POCs for CVE-2016-9493

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III. Intelligence Information for CVE-2016-9493

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Vendor Advisories for CVE-2016-9493 (2)

Same Patch Batch · PHP FormMail · 2018-07-13 · 5 CVEs total

CVE-2016-9482 PHP FormMail Generator generates PHP code for standard web forms, and the code generated i
CVE-2016-9483 PHP FormMail Generator generates PHP code for standard web forms, and the code generated i
CVE-2016-9484 PHP FormMail Generator generates PHP code for standard web forms, and the code generated d
CVE-2016-9492 PHP forms generated using the PHP FormMail Generator are vulnerable to unrestricted upload

IV. Related Vulnerabilities

Same product: Generator
Same vendor: PHP FormMail
Same weakness: CWE-80

V. Comments for CVE-2016-9493

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