TI-2021-21191 Aliases CVE-2021-46360 GHSA-45x9-545x-8mc3

Authenticated remote code execution (RCE) in Composr-CMS 10.0.39 and earlier allows…

MEDIUM 50CWE-434Published 2022-02-09 · Updated 2024-08-04

Key facts

Attack vector: Network
Privileges required: Low
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

Authenticated remote code execution (RCE) in Composr-CMS 10.0.39 and earlier allows remote attackers to execute arbitrary code via uploading a PHP shell through /adminzone/index.php?page=admin-commandr.

Why it matters now

EPSS 0.09183 95th 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:ocproducts:composr::::::::	up to 10.0.39	Vulnerable	Ocproducts

cpe:2.3:a:ocproducts:composr:*:*:*:*:*:*:*:* Versions up to 10.0.39 Vulnerable ·Ocproducts

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-46360
2026-10-03 Alias added: GHSA-45x9-545x-8mc3

References

Exploit 1

https://github.com/sartlabs/0days/blob/main/Composr-CMS/Exploit.py

Other 1

http://packetstormsecurity.com/files/171489/Composr-CMS-10.0.39-Remote-Code-Execution.html

TI-2021-10690 Composr 10.0.36 allows upload and execution of PHP files. CVSS 3.1CRITICAL 9.8
TI-2021-10691 Composr 10.0.36 allows XSS in an XML script. CVSS 3.1MEDIUM 6.1

Sources

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