TI-2021-03401 Aliases CVE-2021-20101 GHSA-83r5-mv86-2rcp

Injection in AppNitro Machform

LOW 28CWE-74Published 2021-06-29 · Updated 2024-08-03

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: Low · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

Machform prior to version 16 is vulnerable to HTTP host header injection due to improperly validated host headers. This could cause a victim to receive malformed content.

Why it matters now

EPSS 0.00722 54th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	AppNitro Machform	All versions prior to version 16	—	No fix listed	CNA

AppNitro Machform Vendor— Affected All versions prior to version 16 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:machform:machform::::::::	before 16	Vulnerable	Machform

cpe:2.3:a:machform:machform:*:*:*:*:*:*:*:* Versions before 16 Vulnerable ·Machform

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-20101
2026-10-03 Alias added: GHSA-83r5-mv86-2rcp

References

Other 1

https://www.tenable.com/security/research/tra-2021-25%2Chttps://www.machform.com/blog-machform-16-released/

TI-2024-25139 Machform up to version 19 is affected by an authenticated Blind SQL injection in the user account settings page. CVSS 3.1HIGH 8.8
TI-2024-25136 MachForm up to version 21 is affected by an authenticated unrestricted file upload which… CVSS 3.1CRITICAL 9.9
TI-2024-25138 MachForm up to version 19 is affected by an authenticated stored cross-site scripting. CVSS 3.1MEDIUM 5.4
TI-2024-25137 MachForm up to version 19 is affected by an unauthenticated stored cross-site scripting… CVSS 3.1MEDIUM 5.4
TI-2018-04724 An issue was discovered in Appnitro MachForm before 4.2.3. CVSS 3.0CRITICAL 9.8
TI-2018-04723 An issue was discovered in Appnitro MachForm before 4.2.3. CVSS 3.0CRITICAL 9.8

See all 14 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences