# CVE-2021-44618: Server-side Template Injection in nystudio107/craft-seomatic

Source: https://junglewise.ai/threats/cve-2021-44618-server-side-template-injection-in-nystudio107-craft-seomatic  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2022-03-12  
License: CC BY 4.0 with a link back

CVE-2021-44618 · Severity: low · CVSS 3.1 · Published 2022-03-12

Server-side Template Injection in nystudio107/craft-seomatic

Technologies: [nystudio107/craft-seomatic (Packagist)](https://junglewise.ai/threats/technologies/nystudio107-craft-seomatic). Vendors: [Packagist](https://junglewise.ai/threats/vendors/packagist).

## Quick answers

**Is CVE-2021-44618 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2021-44618 being exploited in the wild.

**How severe is CVE-2021-44618?** Low severity, with a CVSS score of 3.1, published 12 March 2022.

**Which products and versions are affected?** nystudio107/craft-seomatic (Packagist) ECOSYSTEM:introduced=0,fixed=3.4.12.

**Is there a fix for CVE-2021-44618?** Yes. nystudio107/craft-seomatic (Packagist): upgrade to 3.4.12 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2021-44618?** Check whether you run nystudio107/craft-seomatic (Packagist) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- nystudio107/craft-seomatic (Packagist): upgrade to 3.4.12 or later

  ```sh
  composer require nystudio107/craft-seomatic:^3.4.12
  ```


## Affected products

- nystudio107/craft-seomatic (Packagist) ECOSYSTEM:introduced=0,fixed=3.4.12

## Identifiers

- CVE-2021-44618
- GHSA-m3xv-x3ph-mq22

## Related threats

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- [SEOmatic for CraftCMS allows Server-Side Template Injection](https://junglewise.ai/threats/cve-2020-12790-seomatic-for-craftcms-allows-server-side-template-injection)
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- [SEOmatic plugin for Craft CMS SSTI Vulnerability](https://junglewise.ai/threats/cve-2018-14716-seomatic-plugin-for-craft-cms-ssti-vulnerability)