TI-2020-14037 Aliases CVE-2020-21359 GHSA-r72h-j3wg-jrp4

An arbitrary file upload vulnerability in the Template Upload function of Maccms10 allows…

MEDIUM 46CWE-434Published 2021-08-11 · Updated 2024-08-04

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-434.

Summary

An arbitrary file upload vulnerability in the Template Upload function of Maccms10 allows attackers bypass the suffix whitelist verification to execute arbitrary code via adding a character to the end of the uploaded file's name.

Why it matters now

EPSS 0.01733 77th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

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
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:maccms:maccms:10.0:::::::*	10.0	Vulnerable	Maccms

cpe:2.3:a:maccms:maccms:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Maccms

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2020-21359
2026-10-03 Alias added: GHSA-r72h-j3wg-jrp4

References

Exploit 1

https://github.com/magicblack/maccms10/issues/80

TI-2025-20709 maccms10 v2025.1000.4047 has a Server-Side Request Forgery (SSRF) vulnerability via Add Article. CVSS 3.1CRITICAL 9.1
TI-2025-20708 maccms10 v2025.1000.4047 is vulnerable to Server-Side Request Forgery (SSRF) in the Collection Custom Interface feature. CVSS 3.1CRITICAL 9.1
TI-2025-20707 maccms10 v2025.1000.4047 is vulnerable to Server-Side Request Forgery (SSRF) via the Scheduled Task function. CVSS 3.1CRITICAL 9.1
TI-2025-28783 maccms10 v2025.1000.4047 is vulnerable to Server-side request forgery (SSRF) in Email Settings. CVSS 3.1HIGH 7.3
TI-2017-12978 Maccms 8.x allows remote command execution via the wd parameter in an index.php?m=vod-search request. CVSS 3.0CRITICAL 9.8
TI-2024-21313 Cross Site Scripting vulnerability in MacCMS v.10 v.2024.1000.3000 allows a remote… CVSS 3.1HIGH 7.3

See all 36 →

Sources

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