In the SEOmatic plugin before 3.2.49 for Craft CMS, helpers/DynamicMeta.php does not…
Priority LOW 37CWE-74Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.
Summary
In the SEOmatic plugin before 3.2.49 for Craft CMS, helpers/DynamicMeta.php does not properly sanitize the URL. This leads to Server-Side Template Injection and credentials disclosure via a crafted Twig template after a semicolon.
Why it matters now
EPSS 0.02189 82nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed nystudio107/craft-seomatic (Packagist): 3.2.49
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 3.2.49 | 3.2.49 | Patch available | GHSA-23q7-59jj-2pj4 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- nystudio107/craft-seomatic (Packagist) Vendor— Affected before 3.2.49 Fixed in 3.2.49 Patch available GHSA-23q7-59jj-2pj4
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:nystudio107:seomatic:*:*:*:*:*:craft_cms:*:* | before 3.2.49 | Vulnerable | Nystudio107 |
- cpe:2.3:a:nystudio107:seomatic:*:*:*:*:*:craft_cms:*:* Versions before 3.2.49 Vulnerable ·Nystudio107
Remediation
- Fix · GHSA-23q7-59jj-2pj4 nystudio107/craft-seomatic (Packagist) Fixed in 3.2.49 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2020-12790
- 2026-10-03 Alias added: GHSA-23q7-59jj-2pj4
References
Advisory 3
More Nystudio107 Seomatic vulnerabilities
- TI-2021-18401 In the SEOmatic plugin up to 3.4.11 for Craft CMS 3, it is possible for unauthenticated… CVSS 3.1CRITICAL 9.8
- TI-2018-10569 A Server Side Template Injection (SSTI) was discovered in the SEOmatic plugin before… CVSS 3.1HIGH 7.5
- TI-2021-20172 A Server-side Template Injection (SSTI) vulnerability exists in Nystudio107 Seomatic… CVSS 3.1CRITICAL 9.8
- TI-2021-18402 A cross-site scripting (XSS) vulnerability in the SEOmatic plugin 3.4.10 for Craft CMS 3… CVSS 3.1MEDIUM 6.1
Sources
- CVE-2020-12790 · CVE Program
- CVE-2020-12790 · NVD
- FIRST EPSS
- GHSA-23q7-59jj-2pj4 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences