TI-2020-14054 Aliases CVE-2020-21434 GHSA-6q4r-96qj-749p

Maccms 10 contains a cross-site scripting (XSS) vulnerability in the Editing function…

LOW 25CWE-79Published 2021-10-04 · Updated 2024-08-04

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

Maccms 10 contains a cross-site scripting (XSS) vulnerability in the Editing function under the Member module. This vulnerability is exploited via a crafted payload in the nickname text field.

Why it matters now

EPSS 0.0052 44th 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-2020-21434
2026-10-03 Alias added: GHSA-6q4r-96qj-749p

References

Exploit 1

https://github.com/Ksharp12138/maccms_userinfo_xss/blob/master/maccms_xss.md

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