TI-2020-07842 Aliases CVE-2020-9757 GHSA-6q4j-8pjm-5mgc

The SEOmatic component before 3.3.0 for Craft CMS allows Server-Side Template Injection…

HIGH 80CWE-74Published 2020-03-04 · Updated 2024-08-04

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

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

Summary

The SEOmatic component before 3.3.0 for Craft CMS allows Server-Side Template Injection that leads to RCE via malformed data to the metacontainers controller.

Why it matters now

EPSS 0.72821 99th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed nystudio107/craft-seomatic (Packagist): 3.3.0

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
—	nystudio107/craft-seomatic (Packagist)	before 3.3.0	3.3.0	Patch available	GHSA-6q4j-8pjm-5mgc

— Vendor— Affected all versions Fixed in — No fix listed CNA
nystudio107/craft-seomatic (Packagist) Vendor— Affected before 3.3.0 Fixed in 3.3.0 Patch available GHSA-6q4j-8pjm-5mgc

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:craftcms:craft_cms::::::::	before 3.3.0	Vulnerable	Craft CMS

cpe:2.3:a:craftcms:craft_cms:*:*:*:*:*:*:*:* Versions before 3.3.0 Vulnerable ·Craft CMS

Remediation

Fix · GHSA-6q4j-8pjm-5mgc nystudio107/craft-seomatic (Packagist) Fixed in 3.3.0 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2020-9757
2026-10-03 Alias added: GHSA-6q4j-8pjm-5mgc

References

Exploit 1

https://github.com/giany/CVE/blob/master/CVE-2020-9757.txt

Patch 2

Advisory 2

Other 1

https://github.com/nystudio107/craft-seomatic

TI-2025-23503 Craft CMS Allows Remote Code Execution KEVCVSS 3.1CRITICAL 10.0
TI-2024-37138 RCE when PHP `register_argc_argv` config setting is enabled in craftcms/cms KEVCVSS 4.0CRITICAL 9.3
TI-2025-16994 Potential RCE with a compromised security key in craft/cms KEVCVSS 3.1HIGH 8.1
TI-2025-24595 Craft CMS stores user-provided content in session files KEVCVSS 4.0MEDIUM 6.9
TI-2023-22284 Craft CMS Remote Code Execution vulnerability CVSS 3.1CRITICAL 10.0
TI-2024-25171 Craft CMS up to v3.7.31 was discovered to contain a SQL injection vulnerability via the GraphQL API endpoint. CVSS 3.1CRITICAL 9.8

See all 96 →

Sources

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