CVE-2016-9492 - CVE House

Back to Database

Status published Critical CVE-2016-9492

PHP forms generated using the PHP FormMail Generator are vulnerable to unrestricted upload of dangerous file types

9.8 CVSS

Vulnerability Description

The code generated by PHP FormMail Generator prior to 17 December 2016 is vulnerable to unrestricted upload of dangerous file types. 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2016-9492

Check My Exposure

Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

Thanks to Ibram Marzouk for reporting this vulnerability.

References

More from PHP FormMail

View All →

PHP forms generated using the PHP FormMail Generator are vulnerable to stored cross-site scripting

PHP FormMail Generator generates PHP code for standard web forms, and the code generated does not properly validate user input folder directories and is vulnerable to path traversal

PHP FormMail Generator generates PHP code for standard web forms, and the code generated is vulnerable to unsafe deserialization of untrusted data

PHP FormMail Generator generates PHP code for standard web forms, and the code generated is vulnerable to authentication bypass

Affected Vendor

PHP FormMail

View all reports →

Affected Software

Generator

Vulnerable Versions:

17/12/2016

Timeline

Official Publish: July 13th, 2018

Last Modified: August 6th, 2024

Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application

T1505.003 Web Shell

T1105 Ingress Tool Transfer

Command and Control

T1059 Command and Scripting Interpreter

T1565.002 Stored Data Manipulation